sexing chinese hamsters

Question
please help, thing is i have two male chinese hamsters(i think) due to there large scrotum but i bought another chinese hamster two weeks ago which i was told be a female,  but over the last couple of days it looks as though ''she'' has a growing scrotum, thing is i've been looking on the internet at pictures of how to sex hamsters but all pictures show the anus close to the genitalia where the chinese's anus is under the tail and seperated from the genitalia by the scrotum could you please offer some advice, thanks

Answer
Hi Mark,

    This is the best way I know to tell you how to sex your hamsters. A male will have 2 holes far apart ( .  . ) and the scrotum will be near the bottom hole. A female will have 2 holes close together ( .. ) and may sometimes appear as only 1 hole.
    I hope this helps, I know how difficult it can be to sex hamsters, especially the pups.
    If you have anymore questions, please write again.

Thank you for writing and best of luck!