A hard, painless bump on the hand may be one of the clinical manifestations of many diseases. So you can take targeted measures to deal with different triggers, you can clarify the nature of the lesion site through imaging and so on, so as to make a diagnosis, and then choose the right way to treat: a. Skin diseases: patients with painless hard bumps on the hands, the first suspected skin diseases, such as common warts, dermatofibroma, etc., may appear skin raised bumps, hard texture, usually with local hygiene The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The surgery can reduce the pressure of local tissues, which is more damaging but less recurring, and can remove the hard bumps growing on hands faster. Second, osteoarthrosis: may be due to patients overexerted or long-term hand work resulting in bony lesions in the hand, such as osteophytes, tendon sheath cysts, etc., may be manifested as a local bulge, shaped like a hard lump. 1, osteophytes: patients with osteophytes, usually need to apply non-steroidal anti-inflammatory drugs to relieve symptoms; 2, tendon sheath cysts: usually temporary observation can be done, but also through puncture, aspiration, and injection steroids to cure.