Foreign body after circumcision is usually caused by postoperative infection, scar proliferation and other factors, which can be treated with levofloxacin tablets, silicone gel and other medications under the guidance of the doctor. 1. Postoperative infection: It may be due to the lack of attention to local hygiene and cleanliness after circumcision, causing bacterial infection and the phenomenon of foreign body after circumcision. The infection may also cause fever, redness, swelling, itching and other symptoms, which can be treated with drugs such as levofloxacin tablets under the guidance of the doctor. 2. Keloid hyperplasia: It may be due to the edema of the incision after circumcision did not subside, and accompanied by keloid hyperplasia, caused by the phenomenon of foreign body after circumcision, can be used under the guidance of the doctor, such as silicone gel and other drugs treatment. After circumcision should pay attention to strict aseptic dressing change, in daily life, should pay attention to local hygiene and cleanliness, avoid scratching, to prevent infection. If you have any symptoms of physical discomfort, you should go to the hospital in time, under the guidance of the physician, to clarify the cause and then give targeted treatment.