10-year-old boy penis root pain may be related to urinary system infection, urinary tract stones, trauma and so on. 1. urinary system infection: the child did not pay attention to penile hygiene or the presence of a circumcision, easy to cause urethral infection, causing local urethral mucosa congestion and edema, rupture and so on, may cause pain. 2. Ureteral stones: it may be ureteral stones, embedded in the narrow position of the ureter, or cut the urethral mucosa, causing fundamental radiating pain in the penis. 3. Trauma: if the root of the penis is traumatized, or localized with hard knots and other conditions, may cause pain in the cavernous body of the penis. 10-year-old boy penis root pain can also be seen in other causes, it is recommended to timely consult a doctor, follow the doctor’s instructions for relevant examinations, with the help of the doctor to deal with or treatment.