Causes of cracked edges of turtle shells:

1. Molting of armor. The turtle is in the time of changing its shell. The turtle needs to grow. When the turtle grows up, the shell will not grow as it grows, but will fall off. At the same time as it falls off, the turtle shell will crack, and the locations of the cracks are the dorsal shell and plastron.

2. Nail rot. Nail rot is one of the common diseases of turtles. This disease is characterized by ulcers on the surface of the carapace. In severe cases, there may even be holes, and the muscles inside can be seen.

3. Trauma. Shell rupture of a turtle caused by falling from a height.

4. Growth lines. When the Brazilian turtle is about to grow up rapidly, usually in summer, there will be gaps between the nail plates, which look like cracks. this is normal.

5. Calcium deficiency. When it is time to shed its armor, it is recommended to feed it some calcium-containing food, such as shrimp.
6. Caused by dry maintenance. If kept dry for too long, the turtle shell will be too dry, cracked, and deformed.

How to care for a cracked turtle shell edge:

1. Clean the wound. If the turtle sheds its shell due to trauma, it is necessary to remove the pus and necrotic material from the turtle's wound to form a new wound, and then use hydrogen peroxide to clean the wound for the turtle.

2. Apply medicine to the wound. If the turtle has nail rot, you also need to apply hydrogen peroxide to the wound, and then apply a layer of potassium permanganate crystals.

3. Don’t worry. If the shell of a baby turtle is cracked, it is because the turtle is growing and needs to shed its shell, so there is no need to worry too much.