Throat and lung hemorrhage can be differentiated in terms of symptoms, amount of bleeding, and causes of bleeding. Patients with bleeding in the throat usually have symptoms such as sore throat, itchy throat, and foreign body sensation in the throat; those with bleeding in the lungs often have symptoms such as coughing up phlegm, chest tightness, chest pain, and difficulty in breathing. Pharyngeal hemorrhage: pharyngeal hemorrhage is usually due to pharyngeal inflammation when coughing too hard or long-term coughing, resulting in pharyngeal capillary rupture bleeding, bleeding smaller; may also be a foreign body stuck in the throat, damage to the pharyngeal blood vessels, generally have a history of foreign body swallowing, bleeding is generally smaller; pharyngeal surgery bleeding or pharyngeal tumors violated blood vessels leading to bleeding, bleeding larger or smaller. Bleeding in the lungs: Bleeding in the lungs is mainly caused by intra-pulmonary lesions that have violated the blood vessels in the lungs, leading to rupture of the blood vessels. Such as tuberculosis, lung tumors, often accompanied by coughing, coughing up sputum, hemoptysis, chest tightness, chest pain, dyspnea and other symptoms. If symptoms such as hemoptysis, vomiting blood, or vomiting blood occur, you should go to the hospital immediately for relevant examinations. Electronic laryngoscopy, bronchoscopy, chest CT, MRI, etc. can accurately localize the lesions.