Lift the tail gently and look at the area beneath 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 kittens may show two small bulges where the testicles will develop
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 usually have the anus and genital opening closer together
Compare the shape and spacing of the openings rather than fur color or size
If unsure, ask a veterinarian to confirm the sex