Edema after anastomosis surgery is mainly according to the degree of severity of the disease, if the disease is relatively light, generally manifested as a circle of swelling of the foreskin; if it is more serious, the manifestation of obvious edema and the foreskin translucent. 1. Mild: edema of the foreskin after anastomosis surgery is a normal physiological phenomenon, mainly due to lymphatic reflux disorders caused by the main manifestation of a circle of swelling in the foreskin incision, and is not accompanied by pain, itching and other symptoms. 2. More serious: If the incision is infected by bacteria after anastomosis surgery, it can lead to increased edema of the foreskin, similar to a swimming circle and the foreskin is bright, accompanied by mild pain and a little oozing. If the above symptoms occur, it is recommended to use under the guidance of a doctor for observation or treatment, and if necessary, can apply erythromycin ointment.