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Sputum
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Sputum is mucus that the body produces to protect the airways. Changes in sputum color, thickness, or quantity may indicate a health problem, such as an infection, lung disease, or cancer. Learn about the causes and symptoms of different sputum conditions and when to seek medical help.
Mucus is a clear, slippery, gel-like substance that's part of your immune system. It lines your mucous membranes and helps trap and destroy or clear out germs and harmful particles. Learn about the different types, functions, colors and conditions of mucus, also known as phlegm or sputum.
Sputum is a type of mucus secreted by cells in the lower airways of the respiratory tract. It can help to diagnose lung diseases, infections, and cancer, depending on its quantity, texture, and color.
Sputum is mucus coughed up from the lower airways, which can be examined for respiratory infections and diseases. Learn about the different colors, consistencies, and causes of sputum, and how to collect and analyze sputum samples.
Learn about the possible causes and treatments of coughing up phlegm, also known as sputum, and when to see a healthcare provider. Find out how to distinguish different types of phlegm and what they mean for your health.
Learn how the color of your phlegm can indicate an underlying condition, such as infection, inflammation, or bleeding. Find out when to contact a doctor and how to treat phlegm.
Learn what sputum is, how it varies in color and consistency, and what it can indicate about respiratory health. Find out how sputum induction and culture are used to diagnose and treat lung diseases.
A sputum culture is a test that detects bacteria, fungi or other germs in your lungs or airways. Learn how to prepare, what to expect and how to interpret the results of this test for diagnosing and monitoring respiratory infections.
Learn how mucus or sputum in your lungs can affect your breathing and increase your risk of infection. Find out how to prevent, treat and manage mucus in chronic lung diseases such as COPD, asthma and cystic fibrosis.
Clear, bubbly phlegm may be a sign of fluid in the lungs, bronchiectasis, or GERD. Learn about other colors of phlegm and when to contact a doctor.