Circumcision has certain risks, which include: 1, the risk of anesthesia, children need to use general anesthesia, adults need to use local anesthesia, there is a possibility of anesthesia accidents, and can not wake up or respiratory, cardiac arrest, extremely rare. 2, the operation have the risk of bleeding, the general bleeding amount in 5-10ml, but some patients poor coagulation function or strong post-operative occurrence However, some patients have poor coagulation function or have a strong erection after surgery, resulting in continuous bleeding from the wound, and serious patients may even experience hemorrhagic shock. 3. The risk of infection may occur after surgery due to the presence of a local wound and the potential risk of contamination by urine. Infection can lead to local skin breakdown, long-term wound non-healing, or fever and chills. 4, the formation of scar after local healing after surgery, the scar leads to narrowing of the external foreskin and embedded above the glans, with the risk of glans ischemic necrosis, which is also relatively rare.