Causes of right middle finger ulcers include trauma, thromboembolic vasculitis, diabetes mellitus, etc. It is necessary to improve the symptoms through general treatment and medication after clarifying the causes. 1. Trauma: most of the ulcers caused by trauma are infected, it is recommended to take antibiotics such as roxithromycin, doxycycline and other drugs to control inflammation and promote recovery. 2. Thromboembolic vasculitis: it is recommended to quit smoking and drinking, keep warm and prevent cold in life. Clopidogrel, heparin, urokinase and other drugs can also be used to restore blood circulation and improve the prognosis of the disease. 3. Diabetes mellitus: middle finger ulcers caused by diabetes mellitus are mostly caused by damage to peripheral nerves and blood vessels due to poor blood glucose control, and it is recommended to take drugs such as metformin and acarbose to actively control blood glucose. Due to the complexity and diversity of the causes, it is recommended to go to the hospital in time to identify the causes of ulcers in the middle finger, and actively cooperate with the doctor to receive standardized treatment, the use of drugs in the process of adverse reactions need to consult the doctor, drug allergy is prohibited.