What causes overproduction of mucus The membranes of your nose and sinus passages create nasal mucus. Allergies or irritants. Other processes, for example, goblet cell and glandular hyperplasia, contribute to mucus overproduction (Rose and Voynow 2006). Sep 6, 2016 · More severely, airway obstruction because of mucus overproduction is one of the major causes of mortality in asthma patients. Feb 10, 2024 · When the body produces more mucus than usual or the mucus is thicker than normal, it can cause congestion and accumulation in the back of the throat. Jul 11, 2024 · Mucus serves a vital role in the body, but too much of it can be problematic. Lack of tear production by the eye is what causes dry eye. Allergies and other irritants in your respiratory tract can cause excess clear mucus. This is when there is an accumulation of mucus in the nose that eventually descends into the throat. COPD: Some patients with COPD have increased mucus production. Cystic fibrosis (CF) is both the most common and most lethal genetic disease in the Caucasian population. Several environmental or lifestyle factors can also contribute. Understanding the underlying causes is the first step in addressing this issue effectively. This overproduction can lead to a sensation of mucus accumulation in the throat. Feb 17, 2011 · Cigarette smoking has been linked with overproduction of mucus associated with chronic bronchitis, according to a new study. This accumulation can irritate sensitive tissues, resulting in inflammation and Mar 17, 2023 · The chemicals in cigarettes lead to over-production of mucus with a thicker consistency. com/3-ways-to-release-mucus-from-your-lungs/). When functioning correctly, mucus is incredibly beneficial. Mucus is a standard substance produced by lining tissues in the body. This seems to be related to metabolism. Mucus serves as a protective barrier, trapping pathogens and particles, while also keeping tissues moist. Abstract. Nov 13, 2024 · Causes of Post-Nasal Drip. When sinuses are inflamed, they become swollen and produce too much mucus. It is possible to counteract the inappropriate production of mucus in patients with asthma and chronic obstructive pulmonary disease (COPD), according to a study published in the journal eLife . This can lead to all sorts of stupid digestive issues including SIBO which is linked to Dysautonomia. Sep 4, 2024 · Mucus is a sticky fluid that lines your lungs, throat, mouth, nose, and sinuses and helps to protect against various infections. Certain beverages and foods can trigger excessive mucus production in the body. Despite the effectiveness of general asthma therapies, specific treatments that prevent mucus overproduction in asthma The body is responding to an irritation in the throat. Learn more about the symptoms associated with mucus in the lungs, what causes it, and how it's Nov 11, 2024 · Antihistamines block or limit the action of histamines, substances produced during allergic reactions that cause the lining tissues in the nose to produce more mucus. What Causes Increased Mucus? Mucus is thick and slippery and secreted by your body’s glands and cells. Older or first-generation antihistamines can be sedating, but newer types of antihistamines can be taken during the day with little sedating effect. When you have bronchitis, your immune system tries to trap the virus and remove it from the body. To reduce this effect, consider opting for lactose-free or plant-based alternatives like almond or oat milk. When you are exposed to mold your body tries to ramp up mucus to protect your body. These conditions include: 1. The study indicates cigarette smoke suppresses a protein that causes Understanding what causes mucus in the body can help unravel its importance and implications for health. Medical Conditions Nov 7, 2024 · Phlegm overproduction is usually temporary. Common Causes of Overproduction of Mucus. Dec 17, 2024 · 4. Apr 27, 2023 · Overproduction of mucus is another effect of this. Levels return to normal once your body fights off an infection and inflammation returns to normal. Mucus can lead to bad breath through a process called microbial decomposition. This article lists and explains the most common conditions known for causing an increase in mucus production. In chronic bronchitis, the breathing tubes in the lungs become inflamed. L. pollen, pet dander, smoke, dust), household chemicals, pollution, or bacteria and viruses, a major cause of mucus production is from the diet. However, the causes of these symptoms remain elusive. Nov 7, 2024 · Causes . These signalling pathways induce goblet cell metaplasia and hyperplasia, leading to overproduction of mucus. The underlying cause of mucus in the throat may resolve independently without treatment. However, problems arise when there's an overproduction or abnormal drainage of mucus. Colds and Respiratory Infections Aug 26, 2022 · But an overproduction of mucus during and after exercise may be a sign you're headed towards respiratory illness, according to the Mayo Clinic. This overproduction can be triggered by a variety of conditions, including colds, flu, allergies (due to pollen, dust, pet dander, etc. Effects of Excessive Mucus on the Body. However, when the body begins to overproduce mucus, it can signal an underlying issue. Let’s take a look at its composition and what can cause its overproduction. Mucus, the body’s natural defense layer, is a sticky, gel-like substance. However, certain conditions can cause an overproduction of mucus, leading to congestion and airway blockages. g. Mucus production may increase when allergies, a cold, flu, cough, or sore throat occur. ), and sinus infections, as well as irritants like smoke and The body produces mucus in response to various stimuli. These mechanisms are reviewed together with ongoing Mar 19, 2015 · About 20 years ago, scientists identified a protein called CLCA1, which when found in high levels in cells lining the airway, has long been linked to overproduction of mucus. Abnormal Mucus in Stool. Blepharitis is more common in people with oily skin, dandruff, or rosacea. In other cases, bile acid malabsorption causes weight gain. Phlegm is generally a good thing but if there’s too much, it might cause more harm than good. He suggests consulting a doctor f May 28, 2021 · The goblet cells will produce new mucus and the old mucus is passed into the lower gastrointestinal tract. Mucus and Your Diet. Mucus production might increase as a result of this. Moreover, the repeated collapse and reopening of the airways that occur in obstructive sleep apnea can cause irritation to the throat and nasal passages. In the lungs, it also filters out dust, allergens (substances that may trigger an allergic reaction), and microbes. Mucus Composition and Functions. Jan 22, 2024 · Some medication, including antibiotics, can irritate the intestinal lining and cause excess mucus in the intestines. What Causes The Overproduction Of Mucus? Various illnesses, including bacterial infections, viral infections, allergies, and lung diseases, can cause an overproduction of mucus. 5. There are several medical conditions and lifestyle factors that can contribute to the overproduction of mucus in the throat and respiratory system. Airway mucus plugging has long been recognized as a principal cause of death in asthma. Common triggers leading to post-nasal drip include: Allergies: Seasonal allergies to pollen, mold or dust can irritate the nasal passages and cause mucus overproduction. BAM, or its causes, may affect the way your body processes and stores calories as fat. Sep 24, 2024 · Causes of Excessive Mucus Production. This causes the overproduction of mucus. Excess mucus or yellow, green, brown, or bloody mucus may indicate a problem. This undermines the way that mucus normally protects the body. Is mucus good or bad? Mucus might be a bit gross, but it isn't usually anything to worry about. Dry Air vs. A viral common cold or sinus infection (usually viral but may be bacterial or fungal) are common causes for thicker mucus. White . , IgA), antimicrobial peptides, and enzymes, which help neutralize pathogens and modulate the immune response. Acid reflux occurs when acid from your stomach travels up your esophagus and sits in the back of your throat. Lying flat can create the sensation of mucus pooling in the back of the throat. 5 . Jan 27, 2022 · Mucus protects your respiratory system with lubrication and filtration. For example, if you’re dealing with an infection, your mouth may produce more saliva to help flush out the bacteria Mucus plays a crucial role in the body, acting as a protective barrier and lubricant for various systems. This overproduction can clog airways, sinuses, and even the digestive system. 3 Hydration: Mucus helps maintain moisture levels in tissues, preventing dryness that can lead to irritation and infection. In order to treat it, you'd need to go through a sleep study and then talk to your doctor about treatment options, per Penn Medicine. In the first place, the most common one is a postnasal drip. Causes include conjunctivitis, dry eye, and physical irritation. Doctor's Assistant chat. Allergens such as pollen, dust, pet dander, and mold can trigger an overproduction of mucus in the nasal passages. Answered by Dr S. May 27, 2022 · Why does mucus develop in the throat? As we mentioned above, mucus can develop due to numerous and diverse causes. Sep 5, 2020 · This is the most common cause of the over production of mucus in the body. When discussing why mucus causes a sore throat, it's essential to consider several interconnected mechanisms. This, if coupled with a certain anatomic predisposition like insufficient opening of the sinuses, will lead to what is commonly known as a sinus block. This life-threatening condition most often affects the lungs, but also the digestive tract. Causes of Excess Mucus Production May 3, 2018 · Constantly removing the mucus can cause further irritation. Excessive inflammation in conditions such as COVID-19 can result in over-production of Allergies are one of the leading causes of post nasal drip. A. Aug 6, 2020 · The infection causes an over production of mucous from the epithelium lining the sinuses. Overproduction, hypersecretion, and decreased clearance of phlegm make mucus accumulate in the lungs. The proteins found in dairy can cause a histamine-like reaction in some individuals, leading to increased mucus production. The overproduction of mucus can be uncomfortable. Doctors test for cystic fibrosis (CF) in newborns, and 75% of people who have it are Causes of catarrh. For some people, mucus in stool may be something that happens once. This damage often results from a buildup of thick, sticky mucus in the organs. Symptoms to Monitor: Color and consistency changes may indicate health issues. Here is an overview before we take a closer look at the potential causes: How Mucus Causes Sore Throat. The more serious forms cause pneumonia up to acute respiratory distress , requiring hospitalization in intensive care. Overproduction of Mucus. Catarrh is your body's natural reaction to things like infection. Mucins are gel-forming glycoproteins that can be stimulated by a variety of mediators. However, if mucus in the throat continues, worsens, or is accompanied by a persistent cough, fever, sore throat, body aches, fatigue, or chills, it could be a sign of an infection, such as bronchitis, that requires treatment. 4 days ago · When dogs have white mucus in their eyes, it is usually due to overproduction of tears or epiphora. Mucus is important in ensuring your body tissues don't dry out. Have allergies. The lining in your nose, sinuses and throat becomes swollen and creates more mucus than normal. Are exposed to smoke or pollution. This excess can result from inflammation or irritation of the airways. It protects the respiratory tract by acting as a physical barrier against inhaled particles and microbes. Aug 6, 2023 · Common causes of mucus-only stools include: Bacillary dysentery: is more likely to cause mucus-only poops than other causes of dysentery; Sexually-transmitted infections (STIs) of the Anorectal canal are also a common cause of mucus in stool. Depending on the cause, it might be white, yellow or green. The present review addresses the mechanisms involved in the Aug 11, 2024 · This also results in mucus overproduction. Overproduction of mucus can occur due to various factors. Apr 24, 2024 · Pink eye discharge may be watery or mucus-like and may leave a crusty residue. Other Causes. These fluids are normally thin and slippery. Bacterial infections: Sinus infections caused by bacteria can lead to an overproduction of mucus that gets stuck and drips down your throat. Jun 9, 2015 · Researchers say over-expression of key proteins may cause the overproduction of mucus that is observed in airway diseases. Overproduction of mucus can lead to a variety of unpleasant and potentially harmful health consequences. Mucus protects your respiratory system with lubrication and filtration. Mucus accumulation in COPD patients affects several important outcomes such as lung function, health-related quality of life, COPD exacerbations, hospitalizations, and mortality. Overproduction of mucus in asthma Nov 11, 2024 · Antihistamines block or limit the action of histamines, substances produced during allergic reactions that cause the lining tissues in the nose to produce more mucus. The saltwater solution draws out excess mucus and Sep 6, 2022 · What Causes the Overproduction of Mucus? An overproduction of mucus is brought on by a wide range of illnesses, including bacterial infections, viral infections, allergies, and lung diseases. For example, infections such as the flu, acute bronchitis, pneumonia, or even asthma can cause your airways to make extra mucus. Airway mucus overproduction is one of the most common symptoms of asthma that causes severe clinical outcomes in patients. Jul 9, 2024 · Learn what causes excess mucus and what you can do about it. Excess phlegm may cause difficulty in swallowing, constant irritation, coughing fits, etc. This is because they have more goblet Sep 6, 2022 · What Causes the Overproduction of Mucus? An overproduction of mucus is brought on by a wide range of illnesses, including bacterial infections, viral infections, allergies, and lung diseases. This article explains the causes of excess mucus in the lungs, and how genetics and lifestyle choices contribute to the problem. Pulmonologist Dr T. One of the most common causes of excessive nasal mucus buildup is allergies. Similarly, inflammation, oxidative stress, cholinergic nerve disfunction, imbalance of proteases, genetic susceptibility factors, and other pathological mechanisms can affect mucus secretion. However, certain conditions can lead to an overproduction of mucus. Sleep with your head elevated. Feb 4, 2024 · Overproduction of bacteria at the base of the eyelashes, or problems with the oil glands in the eyelids, can cause flakes to form. So, the offending irritants are trapped by the mucus in the throat and expelled as phlegm. Sometimes, your body can produce too much mucus that may require frequent throat clearing or treatment to get rid of accumulated mucus in your lungs (Know how in this link https://pereaclinic. Acid reflux . People with COPD have increased mucus production because their lungs are always irritated. It is crucial to understand that while dry air can contribute to the feeling of excess mucus, it doesn’t necessarily cause an overproduction of Sep 6, 2022 · Your mucus may thicken and turn slightly green as the infection develops. Nov 23, 2021 · Cystic fibrosis (CF) is a serious genetic condition that causes severe damage to the respiratory and digestive systems. Infection: A viral infection of the lungs causes bronchitis. However, when there’s an overproduction of mucus or when it becomes thick and sticky, it can lead to various respiratory problems. Mar 14, 2023 · Hypersalivation may be temporary or chronic depending on the cause. Mar 23, 2022 · They include mucin overproduction and hypersecretion, mucus dehydration, oxidative-stress-driven mucin crosslinking, and overabundance of non-mucin polymers such as DNA and actin in mucus 4 – 6 Jan 9, 2025 · Mucus in the lungs is produced by the respiratory system, and can be a symptom of health conditions like pneumonia, tuberculosis, asthma, bronchiectasis or chronic obstructive pulmonary disease. Nov 20, 2022 · The lining of these spaces produces mucus to keep them moist and to protect against germs, dust, and allergens. Propping your head up with a pillow can promote easier drainage. Dec 18, 2024 · However, excessive mucus production can be a symptom of various diseases, indicating the presence of underlying health issues. This may result in excess mucus production. Aug 26, 2024 · This inflammation stimulates the mucus-producing cells in the respiratory tract, leading to an overproduction of phlegm. White: Can signal congestion or a possible infection, as white blood cells enter the area and thicken the mucus. Make sure to seek medical advice. Causes of catarrh include: infections like cold, flu and sinusitis; pollution and cigarette smoke; allergic reactions to things like pollen, dust and animals Cystic fibrosis is a hereditary disorder that causes the overproduction and thickening of mucus and digestive juices, which can clog the pathways, tubes, and ducts throughout the body and increase salt concentration in sweat. Jan 25, 2022 · Sixth, stay hydrated. Jul 22, 2023 · Phlegm getting stuck or overproduction of mucus in throat can be attributed to various reasons. But when mucus production increases or changes in consistency, it can signal underlying issues that require attention. What causes too much mucus? Excessive mucus can be the result of an irritation, allergy or infection. However, if the mucus is persistent or accompanied by other symptoms like pain, bleeding, or changes in bowel habits, it’s important to seek medical advice for proper diagnosis and treatment. A person develops mucus fishing syndrome due to an overproduction May 21, 2024 · The mucus can cause blockages, infections, and damage to affected organs, like the lungs, as people age. Nearly 10 liters of mucus are secreted into the GI tract every day, so it is normal for small amounts to be present in The body produces mucus continuously; however, certain conditions can lead to an overproduction. Have irritated sinuses (sinusitis). Jul 28, 2023 · Infections and allergies can cause thick, glue-like nasal mucus. Mold kills and I'd really suggest a mold test where you live. Some common causes include: Respiratory Infections: Infections caused by viruses or bacteria, such as the common cold, flu, bronchitis, or pneumonia, can lead to increased production of mucus, resulting in phlegm accumulation in the throat. Infections Dec 10, 2024 · What Causes an Overproduction of Mucus? Overproduction of mucus can be caused by several factors, including allergies, infections, irritants, and underlying medical conditions. An inflamed anal fissure or hemorrhoids. Eggs, milk, soy, fish, shellfish, wheat, peanuts and tree nuts are among the most common food allergens, per the Mayo Clinic. During acid reflux, stomach acid travels up your esophagus and sits at the back of your throat. 7 There is also hypertrophy of the submucosal glands that Reid 8 described with a ratio of the Dec 20, 2023 · Dairy foods like milk, cheese, and yogurt are known to thicken mucus and stimulate phlegm production. Yellow-green mucus usually indicates conjunctivitis or sicca syndrome and red-brown mucus indicates old tears. Dec 18, 2024 · Colors. Smoking is notorious for instigating the overproduction of mucus. Milk. And you might have experience with other triggers, not covered in this post. Jan 24, 2014 · Overproduction and hypersecretion by goblet cells and the decreased elimination of mucus are the primary mechanisms responsible for excessive mucus in chronic bronchitis. A stuffy, congested nose results in thick, cloudy mucus that lacks water content. For instance, certain infections like bronchitis can lead to hard phlegm, coughing and chest congestion, especially during exercise, per the Mayo Clinic . Learn more about smoking cessation resources at Temple. Allergies: Sep 7, 2024 · What Causes Mucus to Accumulate? Mucus is produced by your body to trap and remove foreign particles, bacteria, and viruses. Swelling or inflammation in your nose, accompanied by an overproduction of white mucus, is generally a sign you have a common cold. Common Causes: Infections, allergies, and smoking can trigger mucus cough. Inflammatory bowel disease: Crohn’s and ulcerative colitis. Dec 21, 2024 · Mucus in stool can sometimes resolve on its own, especially if it’s due to temporary causes like dietary changes or minor infections. Acid Reflux. Learning the cause of excess mucus helps doctors determine the appropriate Feb 4, 2022 · Why do I overproduce mucus? Causes. Finally, if you smoke, stop. Chronic bronchitis is one of the main conditions that make up COPD. Nov 4, 2023 · While mucus can be beneficial to the body, producing too much mucus can cause breathing difficulties and an increased risk of secondary infection. But sometimes, your body produces too much mucus, which requires frequent throat clea Mucus hypersecretion and chronic productive cough is a feature of CB. N. Allergens like pollen, dander and dust may also cause pink eye. When everything is functioning normally, mucus production is balanced and helps maintain health. Mucin 5ac (Muc5ac) protein, encoded by the Muc5ac gene is the major type of mucin, which is the main biochemical component of mucus expressed in the airway epithelium in respiratory diseases 11 , 13 , 14 . Our body can be allergic to literally anything under the sun. Immune Response: Mucus contains antibodies and enzymes that help fight infections. May 18, 2024 · The mucus accumulates, causing discomfort and the feeling of a blocked throat, while the body further tries to resolve the issue by producing even more mucus. The natural flow of mucus is obstructed. Antihistamines and cold and flu medications may help alleviate excess mucus. Common Causes of Excessive Mucus Production Nov 30, 2022 · Allergies can cause mucus overproduction and the resulting congestion or breathing problems, along with other symptoms like skin rashes, swelling and dizziness, according to the Mayo Clinic. Excessive mucus can cause respiratory issues, such as persistent coughing, difficulty breathing, and sinus congestion. Alam. It’s made up of water, salt, glycoproteins, and enzymes. Jun 30, 2015 · Although excess mucus production can come from allergies (aka. Oct 24, 2021 · Triggers of Excess Mucus in Your Throat Lots of people find that eating and drinking certain foods and beverages can cause overproduction of mucus in your throat. Normal vs. However, when there’s an overproduction of mucus, it can lead to discomfort and even nausea. This article delves into the relationship between excess mucus and feelings of nausea, exploring various causes, symptoms, and remedies. A study found that drinking milk increased the production of mucus in the nose and throat. Customer: CAUSE OF OVER PRODUCTION OF MUCUS. Mucus overproduction and hypersecretion are commonly observed in chronic inflammatory lung disease. Jun 10, 2024 · Most importantly, mucus in the throat is treatable. Cystic fibrosis (CF) is a genetic condition that causes mucus to be thick and sticky. This is a sleep disorder that causes you to stop breathing for brief periods of time throughout the night. 8 In the adjacent small airways, a thin mucus gel layer is produced by columnar secretory (Clara) cells that do not stain for intracellular mucins because they Here are some tips for an anti-mucus diet, how to know what to eat and what to avoid. For example the issue of reflux can be very problematic for singers. Aug 16, 2024 · Overproduction of mucus can lead to excessive coughing, irritation, and possibly interfere with breathing. Inflammation is commonly thought of as being caused by infection and, as presented above, clearly impacts mucus overproduction. Non-Infectious Inflammation Also Impacts Mucus Overproduction. While these functions are essential for overall health, an overproduction of mucus can indicate underlying conditions that merit closer inspection. Bacterial infections and viral infections are common causes. Dr S. Drink plenty of water because it helps mucus flow while loosening congestion. While many people want to drink warm liquids, which can help, you should avoid caffeinated beverages. 1 The primary mechanisms responsible for excessive mucus production in CB in COPD are the overproduction and hypersecretion by goblet cells, and the decreased elimination of mucus. Infection: Bronchitis is a viral infection in the lungs. When mucus overproduction occurs, such as during sinus infections or postnasal drip, it accumulates in the throat and nasal passages. CAUSE OF OVERPRODUCTION OF MUCUS. This slimy substance is crucial for maintaining overall health. Finally, recent medical findings also describe the possibility of skin damage, related to peripheral vascular disorder, in patients with COVID-19. Jan 8, 2025 · Managing the underlying cause of the mucus overproduction and ensuring good hydration can help alleviate the soreness. There can be numerous other causes, such as gastrointestinal obstruction, malabsorption, infectious colitis, gastroenteritis or other reasons that can cause overproduction of mucus in the stomach. Mucus is an integral part of the respiratory physiology. Increased mucus production can lead to post-nasal drip—a condition where excess mucus accumulates in the back of the throat. Nov 27, 2024 · Immune Function: Mucus contains immune molecules, such as immunoglobulins (e. Treatment Options: Hydration and medications can alleviate mucus cough symptoms. Clear: Normal and healthy, indicating proper hydration and functioning of the body’s mucosal tissues. It can cause you to experience pooping mucus. It keeps tissues moist and helps with food passage through the gastrointestinal tract. Mucus is continuously swept from distal to proximal airways. Mucus color can indicate various health conditions:. Some conditions can cause an overproduction of mucus, which may lead to congestion, wheezing and frequent throat clearing. . When exposed to allergens such as pollen, pet dander, or dust mites, the body’s immune system responds by producing more mucus to flush out these irritants. However, milk and other dairy products have also been shown to cause mucus. An allergy will be accompanied by one or more symptoms like a bout of sneezing, itchiness, redness, sweating, watering of the eyes and rashes on the body. Oct 19, 2022 · Bile acid deficiency that leads to fat malabsorption may cause weight loss if you have trouble digesting enough calories. 9. But sometimes, your body produces too much mucus, which May 19, 2022 · What causes mucus overproduction? Your body can go into overdrive creating mucus when you: Have a cold. Milk is a well-known source of calcium and other beneficial nutrients. Your immune system works to contain and eliminate the infection when you have bronchitis. Apr 12, 2018 · This is a genetic disorder that can cause an overproduction of mucus in the body. The respiratory tract is lined with mucous membranes that produce mucus. Aug 5, 2024 · Understanding the causes, symptoms, and remedies for this condition is crucial for managing its impact on your health. Dry eye syndrome: The eye needs moisture to stay healthy. The other is emphysema. Sep 6, 2023 · In some cases, sleep apnea can cause you to drool in your sleep. Sep 20, 2024 · Being sick with sinusitis or respiratory infections is the most common cause of excess amounts of thick mucus in your nose or throat. CF is caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene and is characterized by the accumulation of thick, adherent mucus plaques in multiple organs, of which the lungs, gastrointestinal (GI) tract and pancreatic ducts are the most Dec 2, 2010 · The accumulation of mucus results from some combination of overproduction and decreased clearance, and persistent accumulation can lead to infection and inflammation by providing an environment Understanding Mucus Production: Mucus traps irritants and pathogens. Overproduction of mucus due to mold exposure. What Does Postnasal Drip Feel Like? Postnasal drip typically feels like a constant trickle or accumulation of mucus in the back of the throat. Conditions such as colds, flu, allergies, or chronic illnesses can trigger this excess mucus production. Swamy explains the cause of phlegm and its tendencies like allergy, acidity and sinus inflammation. When the respiratory system is exposed to irritants like smoke, dust, or pollutants, or when it becomes infected with a virus or bacteria, the body may respond by Dec 18, 2024 · How Mucus Can Cause Bad Breath. However, molecular mechanisms of mucin overproduction and secretion have not been understood until recently. Instead of flushing out germs, mucus traps bacteria and other germs in people with CF, increasing their risk for lung infections. Inflammation and overproduction of a thick mucus in the nose and sinuses—the hallmarks of chronic rhinosinusitis (CRS)—are familiar to many physicians. In the most distal bronchioles, epithelial cells are cuboidal and do not produce mucin (bottom box), and bronchiolar patency is stabilized by surfactant from adjacent alveoli. Alam in 1 min 14 years ago. Aug 5, 2024 · In rare cases, mucus can contribute to disease and illness. tlua omxpca ypwr hxhe luzv zixi ceifh yarqijh ndx jtoso