Blood-tinged sputum is a relatively common occurrence and isn’t typically cause for immediate concern. But sometimes, it can be a symptom of a serious medical condition. Sputum, or phlegm, is a ...
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 ...
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