Washing the buttocks should refer to washing the buttocks. The correct way to wash the buttocks of a baby will vary according to gender. For baby boys, if defecation cleaning buttocks, available paper towels to wipe off feces, with a cotton swab dipped in water to scrub the thigh roots or vulva skin folds. When cleaning the anus of male infants, use your hands to gently lift the legs for cleaning, and after cleaning, you can air the buttocks for a while to keep them dry. For female infants, cleaning should be wiped around the anus residual feces, and scrubbed with a clean paper towel, pay attention to the order from top to bottom. Wash the vulva pay attention to the front to back wipe, to prevent bacteria in the anus into the vagina and urethra, wash and air dry, so that the baby’s buttocks dry. Baby buttocks should be cleaned diligently to keep the local clean and dry to prevent diaper rash and so on.