Hi, just wondering if anyone knows if this is a birth mark on my 5 week old little boys buttocks? The health visitor came yesterday and said it probably is a birth mark but if I want to get it checked by the doctor I can. Well I'm an extremely anxious first time mother so phoned the doctor and they said to send a picture of the mark and someone will get back to me. I've been waiting yesterday and today now and still haven't had a phonecall. I phoned the surgery and they said sorry but they'll get someone to phone me tomorrow now. Has anyone had anything similar on their babies? Thanks