Spitting blood from the throat, the intention expressed is not clear, via the throat can be respiratory bleeding, can also be gastrointestinal bleeding, such as caused by bronchitis, tuberculosis, gastrointestinal diseases and so on. 1. Bronchitis: patients are prone to hemoptysis symptoms while coughing, at this time the patient clucked a small amount of blood, often choking symptoms. 2. Tuberculosis: patients with tuberculosis often show symptoms of blood in sputum and hemoptysis, often combined with low-grade fever and night sweats. 3. Gastrointestinal diseases: Commonly caused by upper gastrointestinal diseases such as gastric ulcer, etc., the gastric mucous membrane undergoes ulceration and bleeding, which can easily produce irritation and the symptom of vomiting blood. There may also be tumors in the stomach, tumor spontaneous rupture bleeding, in these cases the patient vomits more blood, it is not easy to stop. There may also be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy.