First, the preparation of saline sitz bath solution According to the ratio of 4 kg of water plus one or two salt (50g), water temperature of 40 degrees, the perineum area is completely immersed in water, each sitz bath time 15 to 20 minutes. According to the age of the patient, choose the right size of the tub. Second, the benefits of saline sitz bath warm hypertonic saline has: (1) good astringent effect, can reduce local edema. (2) Promote local blood circulation, facilitate healing, and later promote scar softening. (3) It has antibacterial effect and promotes inflammation subsidence. (4) Promote the loosening and shedding of absorbable suture knots. The salt bath after hypospadias can be started on the 8th day after hypospadias surgery. After urethral fissure surgery, the local wound will often have some secretions, or blood crust, covering the urethral opening and wound surface, at this time soak salt water bath, can soften the blood crust and secretions off, to promote the wound wound wound surface clean. In addition, the salt water bath can promote the reduction of local skin edema after suburethral cleft surgery. Promote the loosening and shedding of absorbable suture knots. Third, salt water bath after urethral stricture Urethral stricture can be done two weeks after surgery salt water bath, the purpose is to promote good healing of the perineal surgical wound and local wound cleaning and hygiene. Four, after circumcision salt water bath 8 days after circumcision can do salt water bath, circumcision, local wounds often have some blood scabs and foreskin edema, this time soak salt water bath, can soften the blood scabs off, to promote the wound wound surface clean. Promote the local skin edema to subside. In addition, it can also promote the loosening and shedding of absorbable suture knots.