After circumcision, the abnormal condition of the penis is a sign of surgical failure, and common cases include incomplete excision, poor aesthetics, and excessive excision. 1. Incomplete excision: after the operation, the foreskin is still too long, and the glans is still unable to be fully revealed, which is a manifestation of the failure of the operation. 2. Poor aesthetics: After the surgery, there are abnormalities in the local tissue structure, such as serious scarring, which seriously affects the erectile function of the penis and is also a sign of surgical failure. 3. Excessive excision: Excessive excision of the foreskin, which further leads to pain after erection due to shortening of the tethered strap and pulling of the penis, also belongs to the performance of failure. Circumcision recovery process is equally important, not necessarily a surgical failure. If there are abnormal penile conditions or uncomfortable symptoms after circumcision, you need to be admitted to the hospital in a timely manner, under the guidance of the clinician to standardize the treatment, to avoid causing delays in the condition.