What Do Teething Gums Look Like Pictures I Need Some Pictures Or Discription Please.. Teething?

I need some pictures or discription please.. teething? - what do teething gums look like pictures

I know what you appear in a baby's gums during teething? or appear just before a tooth ... Please, my son is 4 montrhs age and gums, where .. white / yellow ... lol and now there are red ... How long does it take a tooth to go, if red and swollen gum pop?