After urethral hypospadias surgery, the best way to prevent urethral stricture is to leave a urinary catheter for support. Effective indwelling urinary catheter can be the most valuable way to prevent the occurrence of urethral stricture. After indwelling urinary catheter, you should drink more water and urinate more often to effectively prevent urethral infection. At the same time, effective anti-inflammatory treatment should be carried out after surgery to effectively prevent wound infection. After wound infection, the possibility of failure of hypospadias repair has the highest incidence, which can easily lead to urinary fistula and urethral stricture. The wound should be actively changed every day to effectively squeeze out the ooze as well as secretion from the wound, keep the wound dry, and effectively make the wound heal quickly.