Patients with symptoms of coughing up blood in the throat often have the following reasons: 1, acute and chronic inflammation of the pharynx: acute and chronic inflammatory factors related to the pharynx, the mucous membrane of the patient’s pharynx often appear to have a certain degree of congestion, swelling and dryness of the performance, coughing action may cause localized pharyngeal mucous membrane ulceration and oozing blood, which can lead to sputum with blood or coughing up fresh blood. 2, pharyngeal benign and malignant tumor hyperplasia: some patients may further develop various benign and malignant tumor hyperplasia in the pharynx, which may also lead to the occurrence of similar symptoms. 3, bloody secretion reflux: some patients may develop bloody secretion from the nasal sinus area flowing back into the pharynx, which may also cause the occurrence of similar symptoms. 4, other parts of inflammation and tumor: If the patient’s lower respiratory tract trachea, bronchial tubes, as well as the lungs, the digestive tract, a variety of inflammatory and tumor-occupying lesions, may also cause similar symptoms, if necessary, need to be further examined in detail.