Black mucus is rare. It can be the sign of a fungal infection, or exposure to pollutants such as coal, dust or cigarette ...

When you have a respiratory tract infection or a lung-related disorder, your lungs produce a thick substance known as sputum. This substance can make it hard to breathe, cause coughing, and harbor ...

A sputum stain for Mycobacteria is a laboratory test performed on a sample of your sputum, or phlegm. It’s also known as an acid-fast bacillus (AFB) stain or a tuberculosis (TB) smear. A doctor ...

The body produces mucus, also known as phlegm or sputum, to protect sensitive tissues in the airways. Changes in the sputum color, thickness, or quantity of phlegm may indicate a health problem, such ...

Eosinophilic asthma is an uncommon type of asthma that’s often severe. It’s named after immune cells called eosinophils, which can go into overdrive and make it harder for you to breathe. The best ...

The study is the first to analyse the make-up and viscosity of sputum from the lungs of patients with severe COVID-19 in depth. The findings have revealed one characteristic of phlegm that may be “at ...

Bronchiectasis is a chronic respiratory condition characterized by abnormal widening and damage to the bronchial tubes in the lungs. These bronchial tubes, which are responsible for carrying air to ...

Please provide your email address to receive an email when new articles are posted on . Microbial diversity was more prevalent in patients with cured vs. treatment-resistant nontuberculosis ...

A sputum culture is a sample of the gooey substance that often comes up from your chest when you have an infection in your lungs or airways. It is mostly made up of white blood cells that fight ...