The causes of small cell lung cancer coughing up blood include tumor involving bronchial blood vessels, tumor necrosis after radiotherapy and chemotherapy, etc. To deal with different causes of the disease, symptomatic treatment, chemotherapy, radiotherapy, surgery and so on can be chosen to stop bleeding and cough. 1. Symptomatic treatment for stopping bleeding and coughing: when the amount of coughing blood is small, medicines can be taken orally or used intravenously under the guidance of physicians to stop bleeding, such as tranexamic acid, phenol sulfonyl ethylamine and so on. As repeated coughing will aggravate coughing up blood, suitable cough suppressants can be chosen to relieve coughing, such as compound licorice tablets and codeine. 2. Chemotherapy: For coughing blood caused by small-cell lung cancer which involves bronchial blood vessels due to tumor progression, suitable chemotherapy can be chosen, such as pedialyte glycoside, cisplatin, carboplatin, cyclophosphamide, paclitaxel, etc. The symptoms of coughing blood will be alleviated after the tumor is shrunken and the condition is under control. 3. Radiotherapy: Coughing blood caused by tumor progression can also be treated with conformal radiotherapy or TOMO knife, etc. Bleeding will be relieved after the tumor shrinks. 4. Surgery: If the amount of coughing blood is too large and there is a risk of asphyxiation, interventional surgery such as bronchial artery embolization can be chosen to control the bleeding after evaluation by physicians. During the period of coughing up blood, small cell lung cancer patients should have a light diet, avoid eating too spicy and too hot food, such as hot pot, spicy hot pot, etc., and quit smoking and drinking, so as not to aggravate the condition. If small cell lung cancer coughs up blood, please consult the hospital in time to avoid delaying the condition.