Hardness in the penis after circumcision can be considered as scar tissue of the surgical incision, lymphangitis and penile sclerosis, further examination is recommended. 1. Scar tissue of the surgical incision: for those who are circumcised or circumcised, after circumcision, due to the damage to the skin tissue caused by the surgery, the granulation tissue will proliferate, and especially for those who are keloidal, hard scarring may occur. 2. Lymphangitis: Because the surgery may damage the veins and lymphatic vessels, the return of the veins and lymph may be obstructed, and if the obstruction of the lymphatic vessels causes lymphangitis, hard touches may also occur. 3. In addition, the cavernous body and fascia of the penis may be slightly damaged due to surgery or poor postoperative care, etc., causing aseptic inflammation as well as fibrosis of the cellular tissues, leading to the appearance of sclerodactyly. Therefore, it is recommended to go to the hospital for further examination under the doctor’s advice to clarify the cause of the disease.