The back of the hand to grow a raised hard bag does not hurt, may be common warts, tendon sheath cysts and so on, need to target to take physical therapy, medication, surgical treatment, and so on.
1. common warts: is caused by the human papilloma virus infection of a kind of skin redundancy, can take freezing, laser and other physical methods of treatment. For those who don’t want to use physical therapy, you can use fluorouracil ointment, imiquimod ointment and other medications as prescribed by the doctor.
2. Tendon sheath cyst: it may be related to long-term injury or degeneration of the joint area, sometimes it can be ruptured by extrusion and heal by itself, so it can be observed for the time being. If necessary, it can be treated by puncture, aspiration or surgery, but there is still a possibility of recurrence.
A raised bag on the back of the hand is painless and itchy, and may be caused by other reasons, you should go to the hospital in time for a clear diagnosis.