The procedure of urethral dilatation in children includes the steps of positioning, entering the urethral orifice, entering the bulbous urethra, entering the membranous urethra, and going to the bladder. 1. Positioning: the patient is placed in the lithotomy position, local disinfection and anesthesia are applied to reduce the patient’s pain and discomfort. 2. Into the urethra: the operator holds the urethral dilator in his right hand and lifts the penis upward with his left hand to be at a right angle to the abdominal wall, then inserts the urethral dilator into the urethral opening. 3. Into the bulbous urethra: After entering the urethral orifice, the urethral dilator continues to slide forward to reach the bulbous urethra. 4. Into the membranous urethra: After entering the bulbous urethra, the penis is tilted gently forward against the abdominal wall before entering the membranous urethra. 5. To the bladder: After passing through the membranous urethra, the urethral dilator is slowly advanced forward until there is a breakthrough sensation to the bladder. It is retained for a certain period of time in conjunction with the patient’s condition. The above is the procedure of urethral dilation in children, which should be done by a specialized doctor. If urethral dilatation is needed, please visit a regular hospital.