Swelling in the groin or scrotum could be due to hydroceles, which are harmless. More serious inguinal hernias can result in life-threatening complications.
Some boys suffer from hypospadias, where the opening of their urethra, through which they urinate is not at the tip of the penis, but on its shaft or the scrotum. When uncorrected, ejaculation through the urethra, during adolescence and adulthood is similarly affected.
Boys and men may suffer from phimosis, a condition where their foreskin is too tight to be pulled back over the head of their penis, leading to complications such as infections.
Tummy (abdominal) pain due to surgical conditions such as appendicitis or intussusception require surgical treatment.