What are the methods for telling male and female guinea pigs apart?

Guinea pigs are relatively large among rodents, weighing between 700-1200 grams (1.5-2.5 pounds), with a body length of 20-25 cm (8-10 inches). Their average lifespan is between 4 and 5 years, though according to the 2006 Guinness Book of Records, the longest-lived guinea pig survived for as long as 14 years and 10 months.

In fact, the method for distinguishing male from female guinea pigs is very simple, because guinea pigs are small pets with separate sexes and reproduce through mating and giving birth to live young, so guinea pigs of different sexes also have different genital organs. To correctly distinguish male from female guinea pigs, you just need to press your finger on the guinea pig's reproductive organs and take a look. This is because male guinea pigs have reproductive organs that protrude outward, while female guinea pigs do not.

The male has a dot on the Y shape, while the female does not.