symptoms of lung disorders
lung and airway disorders
Coughing Up Blood
Blood-streaked sputum is usually caused by a respiratory infection and, if it resolves, is not usually cause for worry. A lower respiratory tract infection and inhalation of a foreign object are the most common causes in children. Doctors must distinguish hemoptysis from bleeding that comes from the mouth, nose, or throat and from blood that is vomited. Blood-streaked sputum in people who smoke usually requires further evaluation. People who cough up massive amounts of blood must be treated and stabilized immediately, before testing can be done. 