Coughing up blood in the lungs is mainly seen in bronchial dilatation, tuberculosis, lung tumors and severe bronchitis, and hemoptysis in large amounts can easily cause asphyxia and death, so timely hemostasis is needed, as well as active treatment of the primary disease. If the bleeding is not very large, you can start with Yunnan Baiyao, hemostatic acid, hemostatic minerals, vitamin K and other drugs. If the amount of bleeding is large, posterior pituitary hormone should be used. This drug is able to contract the smooth muscle of the blood vessels. It is able to stop bleeding quickly. If the bleeding is caused by a tumor, a thorough examination is needed after stopping the bleeding, and if possible, surgery is needed. If it is caused by bronchitis, it also needs to be treated with effective anti-drugs, usually penicillin or cephalosporin drugs are preferred.