Hey there. I'm new here. I have two Malayan box tortoises. My tortoises' bottom stomach part's skin started peeling since last month. I know it is normal that tortoise shedding their skin. I can google and see mostly explain why the tortoise sheds skin at their shell part. But what about the bottom part? and I found that the tearing parts becomes red like blood color. Is this normal? Please advise. Below are the pictures.