Rub iodine on the wood-carved water turtle two to three times a day, return to the water after 15 minutes of rubbing, get more sun exposure, and pay attention to the water quality. Severely rotten skin will expand with the loss of nails, and the rotten area of the affected area will expand, with a slightly rancid odor. Dry to recuperate the turtle, wipe the affected area with iodophor to disinfect and then apply chlortetracycline ointment. Soak in water for half an hour every day to feed and bask in the sun.

Prevention: pay more attention to the water quality, change the water frequently, and let the wood carving Turtles basking in the sun.