Small hard lumps on the back of the hand are usually caused by tendon sheath cysts, osteophytes, common warts, etc. It is recommended that patients should first clarify the cause of the disease and then do the appropriate treatment. 1. tendon sheath cysts: patients with mild symptoms, you can go to the hospital to use a sterile needle to puncture the cyst fluid and extrusion, or topical ointment, such as flurbiprofen gel ointment, diclofenac sodium ointment, etc., if the situation is more serious, you can go to the hospital to alleviate the treatment of cysts through cystectomy, and other ways. 2. bone hyperplasia: it is recommended that patients can use non-steroidal anti-inflammatory drugs under the guidance of the doctor, such as diclofenac sodium gel, flurbiprofen gel ointment, etc., if the long time has not been relieved, and the symptom is more serious, you can go to the hospital to relieve the treatment through the artificial joint replacement, removal of bone spurs and other surgical procedures. 3. common warts: warts caused by human papilloma virus infection of the skin and mucous membranes. It can be treated with topical medication such as vitamin A cream and fluorouracil ointment, together with freezing, laser and electrocautery under the guidance of a doctor. It is recommended that the patient should follow the doctor’s instructions, under the guidance of the doctor to use drugs and treatment, can help the condition of the recovery.