A bump is a lump like, for example, a bump on your skin or a bump in a road.
keloid...
wart
Wart
Cyst
wart ormilla
A painful bump on your skin, usually worse than a bruise.
it may be a serois medical conditiion, ask a vet. is the rat old? is the bump big? is the lump swollen? is the bump on a patch of thin skin? where has your rat been? is the bump smooth or scaly or something else?
A lump usually refers to a mass or swelling beneath the skin, commonly due to tissue growth or inflammation. On the other hand, a bump is a raised area on the skin that can be caused by various factors such as injury or insect bites. Essentially, a lump is a more generalized term for any abnormal growth or swelling, while a bump is more specific to a raised area on the skin.
It is not recommended to put peroxide on a raised bump on the skin. This can cause irritation and delay healing. It is best to consult with a healthcare professional for proper treatment based on the cause of the bump.
A hard bump under skin on the side of the nose that comes and goes sounds like a common zit. However, it also could be a calcium deposit.
The skin on the top of your head might be sinking in due to a bump you may have gotten to the skull. The skin will follow the contour of the skull.