My 3 year old hasn't gone poop in 5 days. what should i do? he has never done this before.

Call pediatrician: You should call your pediatrician tomorrow morning and ask him or her what to do. Your pediatrician knows your child, and can give you the best guidance. He or she may ask some routine questions about the child's health, and offer some simple remedies. If that doesn't help within a day or two, they may recommend an office visit for a more comprehensive evaluation.

Let Pediatrician kno: You can start by letting your pediatrics know. You can try an enema if you know how to do it and have experience. Otherwise make sure your child gets lots of fluids to drink. Let your pediatrician know so that a regimen of MiraLAX (polyethylene glycol) or some plan is started to keep bowels soft.