Cracking of the circumcision ligament line may be caused by cutting the foreskin too short during surgery, postoperative erection, friction leading to cracking and poor care leading to wound infection. 1. If the foreskin is cut too short at the time of surgery, it may cause the ligament to be stretched more and the suture line to split after the surgery. 2. If the erection of the penis is not well suppressed after the circumcision, and if there is excessive activity and frequent friction, this may lead to wound dehiscence and affect the speed of healing. 3. In addition, if poor care is taken due to untimely changing of medication after the operation, pulling hard when changing gauze, etc., it may lead to infection of the wound, affecting the healing, or even secondary wound dehiscence. Therefore, it is recommended to go to the hospital for further examination and seek medical help.