My son is 3 years old. He is 37lbs and 40ish inches tall. He came to me this morning saying his pee pee hurt. I check him and the tip of his penis (the foreskin for he is not circumcised) is swollen (kind of puffy like a puffy lip) and slightly red. He urniates just fine although he said it hurts, but he still has a good stream and pees normal amounts. He has recently been potty trained and has also started "playing" with himself more. He grabs the foreskin and pulls it sideways a lot and retracts it because he is "looking for more pee." I am wondering if he has just irritated it or if it is something to concern myself with. His penis is not hot to the touch and he doesn't have a fever.