A lump behind my baby's ear. It is hard. But it's painless.

A. Lipoma this term have you heard of it this basically means that it could be a fat ball which moves you’re in there at a particular place in the body but it is going to be of no pain and it is a useless fat of the body so this is looking like that only but still since it is about your child I would advise you to clear it with your doctor