The dangers of circumcision need not be mentioned, that do circumcision, what are the precautions? The following I will make an inventory for you one by one. 1, before surgery must be a specialist examination to determine the need and indications for surgery. Gao Qinghe of the male department of Xiyuan Hospital of the Chinese Academy of Traditional Chinese Medicine recommends surgery: indications for circumcision include circumcision that cannot turn up the foreskin to reveal the head of the penis, prepuce that is too long, narrow foreskin opening, patients who can flip but are prone to entrapment, patients who cause recurrent inflammation of the foreskin of the penis head, etc. Non-operable: ① hypospadias; ② epispadias; ③ occult penis or buried penis; ④ micropenis; ⑤ penile curvature deformity; ⑥ scar body, abnormal coagulation function, allergic to drugs used for surgery. The surgery should be postponed: diabetic patients with poor blood glucose control must have blood glucose control up to standard; those with foreskin ghost head infection are recommended to take medication and cleaning to control infection before surgery to reduce intraoperative bleeding, etc.; those who are too young to cooperate with the surgery can wait until they are a little older. Before the surgery, you need to routinely check the sensory screening (AIDS, syphilis, hepatitis B, hepatitis C, etc.), blood clotting, bathing before surgery (no local water after surgery), skin preparation in the surgical area (shaving pubic hair), normal diet before surgery, avoiding fasting surgery. 2, surgery in accordance with the surgical requirements to the hospital, at this time, as long as you cooperate with the doctor, the surgical process do not stress, the excess foreskin can be cut off. Do not worry about cutting off too much, because this is all done in accordance with the standard, will not stay less to cause discomfort after erection. 3, after surgery after surgery anesthetic is also about to expire, the wound will feel pain, to divert attention to avoid all the factors that can cause erection, especially at night and morning erection often painful to wake up. You can urinate normally after surgery. It is a misconception of many people that circumcision will affect urination. After surgery, do not get wet locally for 1 week, avoid strenuous activities, avoid heavy physical labor in the early stage, prohibit sexual intercourse for one month, and take antibiotics routinely after surgery to avoid wound infection. It is normal to have edema after surgery, especially at the ligament.