Yes, by all means have this looked at by a physican. Just because you were born with it, does not mean it has not changed....and you yourself sadi it had grown. Just to be on the safe side, so there are no abnormal cell changes, have it looked at and ask your physican if this can be removed. Lots of people are too embarassed to even post something like this, but vanity can mean life or death. Its just an anus...everyone has one!!!!!!!! Please get it checked if only for peace of mind!