The pain when the boy urinates is mostly caused by foreskin glansitis or urinary tract infection, it is recommended to go to the hospital for further examination to clarify the possible causes: 1, the boy’s appearance of the genitalia appear obvious redness and swelling, and accompanied by an increase in local secretions, can be considered as foreskin or glans infection, urine stimulation of local edema parts can produce obvious pain, it is recommended to clarify the cause after the use of antibiotics or topical antibiotics to treat foreskin