Localized edema after circumcision is generally due to the blockage of local lymphatic vessels and poor reflux, which is a normal phenomenon. After the completion of circumcision treatment, local blood vessels, lymphatic vessels blocked may lead to poor reflux, which in turn causes edema, lasts about 3 days, with the venous return smooth edema can gradually disappear. Some patients have edema caused by tight dressing, most of which can be reduced after removal of the dressing. Patients should pay attention to avoid urine contamination of the wound when urinating, and should use iodine povidone to clean and disinfect the wound or change the dressing in the hospital after contamination. Local edema after circumcision is mostly caused by poor lymphatic reflux, and it is recommended that patients go to the hospital regularly to change the dressing and check the wound to avoid local infection.