honestly I am not 100% sure. They can get pretty beat up with they are in a cage with other babies at the store. The one on the casque does not look like a typical burn. I am guessing injury. The one above the arm it is hard for me to say. Could just be stuck yuck... You will be able to tell when baby sheds... If that comes off it is just stuck stuff if not then I am not sure.I have some questions is that a burn and is that a skin tag?