There are many causes of throat bleeding, including inflammatory reaction, mucosal and capillary bleeding in the pharynx, pharyngeal neoplasm, blood diseases, etc., as follows: 1. Inflammatory reaction: The more common cause is inflammatory reaction, such as acute pharyngitis, acute tonsillitis. 2. Mucosal and capillary bleeding in the pharynx: It may also be due to mucosal ulceration and bleeding in the pharynx, and some patients are caused by ruptured capillaries and bleeding in the pharynx. 3. 3.New organisms in the throat: It may also be caused by new organisms in the throat, such as laryngeal cancer, hypopharyngeal cancer, laryngeal hemangioma. 4.Blood diseases: A small number of patients are caused by blood diseases, such as leukemia, thrombocytopenia, and coagulation dysfunction. After the onset of the disease, it is recommended to visit the ENT department, where routine blood and coagulation tests can be done to help detect the presence of blood disorders. Electronic laryngoscopy or fiberoptic laryngoscopy is also needed to help clarify the lesions in the throat, and also to clarify the location of the bleeding in the throat, so that targeted treatment can be performed after clarification.