It is difficult to distinguish male and female red-legged tortoises in their infancy, because their bodies are not well developed. When they grow to 15 cm, they can distinguish male and female by the difference of their abdominal armour, tail and hip shield.

1. Different abdominal armour: When red-legged tortoises are adults, the abdominal armour of male and female tortoises will be different. Generally speaking, the abdominal armour of male tortoises is sunken inward, while that of female tortoises is relatively flat. Because the way they mate is that the male turtle climbs onto the back of the female turtle, the depression in the belly armor can just match the protrusion of the back armor.

2. Different tails: The tails of male and female red-legged tortoises are also different. The tails of male tortoises are thicker and longer. The mother turtle's tail is shorter and thinner. However, different feeding methods have different tail sizes, and breeders can compare them according to other characteristics.

3. Different buttock shields: The buttock shields of red-legged tortoises are also obviously different. Usually, the buttock shields of male tortoises are outward, while those of female tortoises are inward.

The male and female red-legged tortoises can be raised together. They belong to medium-sized tortoises, so long as there is enough room for raising them, they can be raised together. Red-legged tortoises should be raised in a ratio of 2: 1 or 3: 2, which can make them mate and reproduce better.