What should I do if the tortoise's abdomen and shell fester in some places?

Huangyuan, I guess. Pay attention to water quality management, keep the water clean, and set aside a piece of land for turtles to stay. In addition, the wound should be treated in time. If the ulcer is shallow, you can clean the wound with hydrogen peroxide (the necrotic tissue should be removed), and then sprinkle potassium permanganate powder on the wound. If the ulcer is serious, the wound is deep and the muscles are exposed seriously, don't use hydrogen peroxide to clean the wound (so as not to increase the pain of the turtle). It can be washed with 10% physiological saline and then applied to the wound with refenor. The wound is cleaned once a day and the dressing is changed once. During the treatment, it is best to raise turtles under dry conditions and try to avoid contact with water.