this certainly merits a call to the pediatrician. he or she may want to examine your son to discover what's going on here. diarrhea shouldn't cause the scrotum to swell. this symptom may be completely unrelated to the diarrhea or there could be some sort of injury to the child's testes that is causing the diarrhea. either way you want to get this assessed. i'd suggest you call your pediatrician as soon as possible. meanwhile keep your son hydrated by providing plenty of fluids. wishing you all the best.
14mo boy diarrhea x 2days. testicle now swollen and painful. diarrhea greenish white.