How to Sex a Degu
Please double check the sexes of the degus you adopt! Of course, it is a matter of practice and experience but these criteria will help you to successfully sex your degus:
As male degus have intra-abdominal testes you won’t find any scrotum to help determine the sex. Both sexes have a cone appendage that is not a sexual organ but is used for urinating only.
On females the space between the anus and the urethral cone (mentioned above) is quite close together. It amounts to a few millimetres shaped only. On the male this space is normally about a centimetre apart showing a longitudinal skin fold (in young males it is not easy to see). On closer examination of the female you can find the vaginal entrance transversal below the urethral cone. The vaginal entrance is normally firmly closed, opening during mating season only.