Blood in sputum can be alarming, but it may result from minor issues such as forceful coughing, throat irritation, nosebleeds, allergies, or post-nasal drip. However, repeated or unexplained bleeding can sometimes indicate infections or other serious respiratory conditions. Paying attention to the amount, frequency, and accompanying symptoms is important. If blood in sputum occurs wit... https://drshubhityagi.in/blood-in-sputum-causes-what-to-do/