A small bone bump at the wrist may be a normal physiological bump, or it may be an osteochondroma or fracture. 1. Normal physiological bump: the bump located at the root of the inner side of the palm is the ulnar styloid process, which is a normal small bone bump in the wrist area, and there is no pain when it is pressed. 2. Osteochondroma: when the wrist is affected by osteochondroma, the bump will also appear, and there will be pain when pressed, and the functional activities of the hand will be impaired. 3. Fracture: when suffering from wrist fracture, there may be distal ulna fracture displacement, resulting in a small bone bump, this situation will have obvious bone rubbing bone rubbing sensation, and there is severe pain. There is a small bone bulge at the wrist, such as pressure without pain, generally can be observed and dealt with, if in doubt, it is recommended to consult a doctor in a timely manner, by the specialist to determine the presence or absence of lesions, a clear diagnosis, for treatment.