A little hardness and pain in the circumcision anastomosis scar after the titanium nail is detached may be caused by overstimulation, scar hyperplasia, infection and other factors. 1. Overstimulation: After the titanium nail comes off, there may be localized hardness, pressure or overstimulation of the affected area, which may cause pain, which can be improved by itself after eliminating the triggers, and does not need to be treated. 2. Scar hyperplasia: In the process of scar healing after surgery, there may be too much fibrous tissue and nerves involved, which may lead to local hardness and pain. 3. Infection: During the postoperative recovery period, improper care leads to localized infection and the formation of a hard mass, accompanied by pressure pain, redness, swelling, fever and other symptoms. Circumcision anastomosis titanium nail off after the scar is a little hard a little pain, and the symptoms are more obvious, it is recommended to seek medical examination and treatment.