Capillary hemorrhage in the throat has the following characteristics: First, it is mostly caused by cough, which may be accompanied by allergic pharyngitis or chronic bronchitis, bronchial asthma, etc. Long-term cough tears the mucosa of the posterior pharyngeal wall, resulting in rupture and bleeding of capillaries under the mucosa, and the amount of bleeding may be small, but if more capillaries rupture and bleed, the amount of bleeding may be larger and form very viscous fresh clots. A very viscous fresh blood clot is formed. Capillary bleeding due to coughing is the most common cause clinically. Second, some patients may have bleeding capillaries under the mucous membrane due to local abrasions and scratches or spicy stimuli while eating, and sometimes bleeding may occur after a small local hemangioma or hemangioma has been broken. Some patients have malignant tumors in the throat, such as laryngeal cancer and hypopharyngeal cancer, and the main body of the cancer has trophoblastic vessels, which may rupture and bleed due to the stimulation of cough or other induced factors. The hemorrhage is often recurrent and may or may not be related to the patient’s cough. In conclusion, if patients always have bleeding in the pharynx, they must perfect electronic laryngoscopy to rule out whether it is capillary bleeding in the pharynx or whether it is due to capillary rupture and bleeding of the tumor or due to bleeding induced by other causes.