2024年9月20日 · 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. Mucus gets thick and sticky and might be white, yellow or green when you have an infection. It’s also called phlegm, snot or sputum.

2024年1月26日 · Coughing up bloody mucus, or sputum, may occur due to a mild respiratory infection, but it may also be a sign of a more severe condition, such as bronchitis. Doctors may refer to it as...

2024年8月2日 · The color of your phlegm can indicate an underlying condition. For example, yellow or green phlegm can be a sign of a respiratory infection, while red or pink phlegm can indicate lung bleeding or inflammation. Phlegm is typically clear and thin. Your body produces it as part of its natural defense against irritants and infections.

2024年1月22日 · Mucus in the airways, known as phlegm or sputum, helps remove dust and debris and keep the lungs clear. Sometimes, problems arise that can change the thickness, amount, or color of mucus.

Red. Similar to pink mucus, red mucus may also be a cause of extra blood in the nasal cavity. 6 It usually indicated the presence of red blood cells. It could also be a sign of an infection, such as pneumococcal pneumonia, or another condition not related to asthma. 8

2025年2月14日 · Yellow or green sputum can indicate a bacterial infection; brown might suggest chronic smoking or the presence of old blood; red or blood-streaked sputum could be a sign of a serious condition like a lung infection, tuberculosis, or lung cancer; pink and frothy sputum may suggest pulmonary edema, a condition needing immediate medical attention.

2011年7月31日 · Red sputum is usually an indication of whole blood that is more profuse than bleeding in pink colored sputum. It may completely discolor the mucus or appear as streaks or spots. Pink sputum is also a sign of bleeding but usually of smaller quantities that may stain or streak the sputum.

2021年1月14日 · Pink or red mucus. Your nasal tissue in the nose has somehow become broken — perhaps because it’s dry, irritated or experienced some kind of impact.

Red phlegm: Bloody phlegm can come from the nose or lungs and signal irritation, infection or cancer. Dark brown phlegm: This is concerning for an infection, such as bacterial pneumonia. Gray phlegm: This is likely normal and tends to be a variation of white phlegm.

2017年4月5日 · By monitoring your snot, you can pick up on a lot of key red flags that might warn you early that you're sick, or about to be. Different mucus colors mean different things, and each should be...