Jan 22, 2024 · Sputum is a type of thick mucus produced by the lungs. This article explains the types of sputum, what causes changes, and when to speak with a doctor.

Sputum is mucus that is coughed up from the lower airways (the trachea and bronchi). In medicine, sputum samples are usually used for a naked-eye examination, microbiological investigation of …

It lines your mucous membranes and helps trap and destroy or clear out germs and harmful particles. Mucus gets thick and sticky and might be white, yellow or green when you have an infection. It’s also …

May 14, 2025 · Sputum is a mixture of saliva and mucus coughed up from the respiratory tract, typically as a result of infection or chronic conditions like bronchitis, pneumonia, or tuberculosis. It can be …

Aug 2, 2024 · Producing clear phlegm often means your body is reacting to irritants or inflammation, while yellow or green phlegm may suggest an infection. Red, pink, brown, or black phlegm …

Aug 22, 2025 · Sputum is a mix of cells, foreign matter, and white blood cells produced in the respiratory tract. An increased amount of sputum is often due to increased respiratory inflammation and is the …

May 4, 2025 · Specifically, sputum is a mixture of saliva and mucus that is coughed up from the respiratory tract, often following an infection or irritation of the mucosa. Phlegm is derived from the …

Sputum: a guide for people with lung conditions This is a guide about sputum (also known as mucus and phlegm) for people living with lung conditions. It is relevant for anyone who needs to do sputum …

Apr 25, 2025 · In the lungs, mucus plays a key role in protecting your lungs and airways from harmful irritants. Sputum and phlegm are other names sometimes used to refer to the mucus in your lungs …

Sputum is mucus that is produced in the lungs and respiratory tract. It is important to prevent microbes from entering the airways and lungs. Usually, it is transparent and thin, completely invisible. …