Lift the tail and look at the area below the anus
Male cats usually have a larger gap between the anus and the genital opening
Male cats usually have a round genital opening
Male cats may have visible testicles if they are not neutered
Female cats usually have a smaller gap between the anus and the genital opening
Female cats usually have a vertical slit-shaped genital opening
Female cats do not have visible testicles
If the cat is very young, sex can be harder to tell
A veterinarian can confirm the cat’s sex if needed