Some babies are born with teeth in their mouth. It is referred to as 'natal teeth'. This condition is quite rare, it occurs in one in every 3,000 babies.
The teeth present in the mouth at birth are usually the incisors on the lower gum and are rarely more than two. They are normally not properly rooted, making them likely to wobble.
Doctors often remove them shortly after birth to prevent feeding problems and choking if the teeth get loose and fall off.
There are typically no long term problems associated with this condition. The babies grow up to have normal teeth later.