How to Know If a Kitten is Male

Written by daniel o'hair
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How to Know If a Kitten is Male
Kittens do not develop strong secondary sex characteristics until they are many weeks old. (Martin Poole/Digital Vision/Getty Images)

Sexing kittens less than 10 to 12 weeks old can be difficult because only subtle differences exist between males and females. The easiest way to tell if a kitten is male is by comparing its genital region to that of a female kitten. The distance between a male kitten's anus and its genitals is greater than the distance between a female kitten's anus and genitals. After approximately 10 weeks, a male kitten's testicles become larger, making it easier to identify its sex.

Skill level:

Things you need

  • Towel or blanket

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  1. 1

    Gently lay your kitten down facing away from you so that its stomach is facing down on a warm blanket or towel.

  2. 2

    Lift the kitten's tail to expose its anus and genital region.

  3. 3

    Observe the kitten's genitalia. A female kitten has a short distance between its anus and vulva, which appears as a slit. A male kitten has a greater distance between its anus and penis, which is shaped like a small circle or dot. A male kitten has a greater distance between its anus and penis to accommodate its testicles as they develop and descend.

  4. 4

    Wait until a kitten is approximately 10 weeks old if you are having trouble determining its gender. A male kitten will have developed noticeable testicles by this time, which can be observed by lifting its tail.

Tips and warnings

  • Compare two or more kittens at the same time to make sexing them easier. The differences between a male and female kitten's genitalia is more easily observable when compared side by side. According to, kittens with calico or tortoiseshell coats are likely to be female.

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