Learn to Differentiate Your Hamsters Gender

The surest way to tell whether a hamster is male or female is by looking at the anogenital distance. This is the distance between the genital openings (penile opening in male hamsters; vaginal and urinary openings in females) and the anus. The two openings can be difficult to distinguish in females, while they are separated by about 1 to 2 centimeters in males.   

Following are general differences apply to all hamsters, although these may be difficult to see, depending on the hamster's age and species:

  1. The back end of the male tends to be elongated and rounder in appearance in comparison to the female.
  2. Male hamsters often have a noticeable scrotum with testicles after about four weeks of age, although the testicles can be retracted.
  3. Only female hamsters have nipples.

Way to Distinguish Hamsters Gender accroding Species Characteristic

Syrian Hamster

Female Syrian hamsters have relatively visible nipples that appear in two rows running parallel to, and along the sides of, the belly. The nipples are most visible when the hamster's belly hair is short. Male Syrian hamsters have fairly obvious testicles that extend from their hind end. The testicles may be retracted (as with all male hamsters) or hidden by fur, but generally, they are discernible in most cases. 

Dwarf Hamster

Male Dwarf hamsters have a visible scent gland located near the middle of the belly. There may also be yellow or oily staining around the gland, resulting from the gland's secretions. Female Dwarf hamsters have very small scent glands that are difficult to see. Male dwarf hamsters also may be identified by their testicles and the shape of the hind end tapering toward their tails. The testicles are most visible on mature hamsters. Finally, male Dwarf hamsters are larger than females, although size is an unreliable measure because it varies by age and the individual animal. 

Chinese Hamster

The most noticeable characteristic of Chinese hamsters is the shape of their hind ends. Males have longer, rounder rear ends than females.

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