I just noticed recently that my two-year old son's belly button is bright red sort of at the base of it. You can see the redness if you stretch the skin around the belly button apart, if that makes sense. It's bright red -- almost blood-red, I'd say -- but it's not oozing or anything. Should I be concerned?
I think these are called granulomas, a friend's little guy had one and it would bleed. They eventually put salt, or maybe some tincture from the doctor on it for a period of days and it shrank and went away.