3-year-old baby boys urinate like a shower is often caused by disease, common causes include circumcision, urethral calculi, hypospadias, etc., should promptly go to the hospital to identify the cause. 1. Hypospadias: Hypospadias refers to the fact that the head of the male penis cannot be exposed or is partially exposed in the natural state. Male babies are often hypospadias due to immature development. The child in the process of urination due to the foreskin will often appear difficult to urinate, urine flow is small and slow, the urine flow is not continuous symptoms. 2. Urethral stones: Urethral stones usually come from the kidneys and bladder, and patients are often accompanied by urethral stenosis and other diseases. When the stone is embedded in the urethra, the patient will often show the phenomenon of abnormal urination. The main clinical symptoms are difficult and painful urination, thin or discontinuous urine flow, and dribbling. 3. Hypospadias: Hypospadias is a common external genital malformation, abnormal closure of the urethral groove in embryonic period will lead to different degrees of hypospadias. Because of the ectopic opening of the urethra, the patient’s urine flow when urinating will be abnormal such as urine spattering, urine can not be normally discharged from the urethra and so on. There are many reasons why a 3 year old baby boy’s urine looks like a splash, as well as encopresis and urethral stricture, which should be treated immediately in a hospital.