The first thing you need to do is to go to the hospital and have an electronic laryngoscopy to find out where the bleeding is coming from and what the cause of the bleeding is. The causes of coughing up blood are as follows: firstly, the mucous membrane of the throat is torn due to hard coughing, which causes bleeding. If a clear bleeding point is found, the bleeding can be stopped by laser or microwave electrocoagulation; if the amount of bleeding is small, it does not need any treatment, and can be healed in about five days. The second one is cough bleeding caused by tumor in the pharynx, which can be seen in the root of tongue, epiglottis valley or pyriform fossa, with abnormal new organisms, non-smooth surface, cauliflower pattern, brittle local texture, easy to bleed, and it will cause the patient’s voice hoarseness, dysphagia, coughing, coughing up sputum, blood in the sputum and other related symptoms. In the treatment, firstly, local pathology should be taken for clear diagnosis, and if it is malignant tumor, surgical treatment is needed.