Yes. This thin skin on the shell peels off and those little wounds appear.@Yvonne G @maggie3fan might be able to help. Is that blood on the one side?
He is a russian tortoise, 4 years old. I have had him almost for 1,5 year. Mostly he eats lettuce, arugula, beet leaves, dried dandelion, beijing cabbage. Rarely he eats pumpkin, zucchini, and bananas. Once in a week I add calcium.I doubt it's because of what he's eaten.
I think more information will be needed -
What species is he, age, how long have you had him?
A picture of his enclosure and the lamps and substrate you use may also help.
What do you feed him and does he have any supplements?
Sorry for all the questions but it will help members help you.