Type 2 diabetes mellitus with cavitary tuberculosis treatment for ten months CT review have shrunk, but also repeated hemoptysis is considered to be the scope of the lesion is still violated, destroyed by the pulmonary blood vessels. Hemoptysis is a clinical manifestation of tuberculosis, because the tuberculosis foci invade the blood vessels of the lungs due to the invasion of small blood vessels that is manifested as a small amount of hemoptysis, the invasion of large blood vessels can be manifested as hemoptysis, should be vigilant, and the serious case can lead to life-threatening. Type 2 diabetes mellitus with cavitary tuberculosis treatment for ten months, although there has been a CT review have shrunk, but if the lesion still violates the pulmonary blood vessels, you can repeatedly hemoptysis. And diabetic patients with high blood sugar, poor glycemic control of the body in a long-term high sugar state, poor vascular function, the lesion of the broken blood vessels are also more likely to bleed. Cavitary tuberculosis should be treated for at least one year, which is a long course of treatment. Patients need to strictly follow the doctor’s instructions to take medication, have regular checkups, and build up confidence in overcoming the disease.