The coronal groove is usually exposed after circumcision. Circumcision is circumcision, and circumcision is a common surgical procedure to remove an overly long foreskin. A long foreskin or circumcision combined with inflammation can lead to adhesion of the foreskin to the glans. Surgery first separates the adhesions between the foreskin and the glans, keeping the glans exposed, and removes the inner and outer plates of the excessively long foreskin, which usually exposes the coronal sulcus after surgery. Removal of the excessively long foreskin can reduce the secretion produced by the foreskin as well as the accumulation of foreskin scale to minimize the irritation to the glans, thus avoiding the triggering of circumcision and glans phimosis, penile cancer and other diseases. If there are other uncomfortable symptoms after the surgery, it is recommended to go to the hospital in time, and the doctor will choose the appropriate treatment plan according to the specific condition.