It is difficult for razor turtles to distinguish male and female at 5 cm, because the most accurate way to distinguish male and female is to observe their genitals or mating positions. However, 5 cm of razor turtle still belongs to the stage of young turtle, and there is no obvious difference between male and female. Generally, it takes 4-5 years to make an accurate judgment. In addition to observing the mating position, breeders can also judge by carapace, belly armor or tail, but these razor turtles with 5 cm characteristics are not obvious, and it will take at least 2-3 years for the characteristics to be obvious.

1. Look at the carapace: If breeders want to distinguish whether razor turtles are male or female turtles, they can judge by their carapace. Generally speaking, the carapace of female turtles is shorter and wider. The carapace of male turtles is relatively long and narrow.

2. Look at the belly armour: There are great differences in the belly armour of different sexes of razor turtles. Generally speaking, the belly armour of female turtles is relatively flat. The belly armor of male turtles has some depressions.

3. Look at the tail: When razor turtles are adults, the tails of male turtles and female turtles are different. Normally, the tail of a mother turtle is short and thin. Male turtles have long and thick tails.

4. Look at the drainage hole: After the razor turtle matures, the location of the drainage hole is also very different. Generally speaking, the female turtle's release hole is close to the abdominal armor, while the male turtle's release hole is close to the tail.

5, look at mating position: After they enter the breeding season, breeders can also judge their sex by mating position. When mating, the male turtle will lie prone on the back of the female turtle.