Ok, sugar glider sexing CAN be hard if you make it that way. On another note it CAN be easy if you know what to look for, especially with mature gliders.

I personally think its easiest to tell their sex a few days after ooping or as they are sexually mature adults. You may be a slight bit confused if you are looking in the wrong area for the genitals. The genitals on a glider are VERY much alike in one way. Where the gliders urinate & poop from is actually the same whole, a 'unawhole'. Both males & females have this & you cannot tell the sex of them from that part of their bodies.

Males: Males are rather easy to sex. They have what is called the 'pom pom' or testical sac. (yes, only one.) You will find this pom pom located in about the middle of the gliders body. It looks just like a little ball attached to the tummy of your glider. If you see a pom pom your looking at your little boy! As the glider gets older they grow more fur making it harder to see until they are an adult & it 'drops,' they will also (if they are not fixed) will begin to lose their fur on their head & chest. Those are the scent glands & appear a lot more on the male than a female. They may change color a bit & even get 'gooey' at times if they become stressed, happy, & or upset.

Adult Male

Here you can see the 'pom pom.' Its obvious that is the testicular area of a male. Sometimes this area of a male will hang a bit, looking like its only there by a thread.. this is normal.

This is the males chest scent gland. Most females will not have them, or at least as dark as a male, but its not too umcommon for a female to be stained there as well. A lot of times a distinct scent gland is bald in a small spot.. this is normal.

Joey Male

Here is a young joey male. You can see the 'pom pom.' It's much smaller than an adults, but its pretty plain as day when your looking at a male glider no matter the age.

Female: The female glider is pretty easy to sex as well, but again, as long as you know what to look for. She will have a little slit on her belly that is visable a few days after ooping. It also makes it harder to see as the joey gets older & grows more fur. The slit will be about in the middle of her tummy, thats the pouch opening. As she gets to mature age it is easier to see again. When she is bred it will become 'stained' & you can see it VERY well as its been streched open too. You can still see it rather well on a mature non bred female too though.

Adult Female

Adult Glider. You can see the opening to the pouch. The anus is identical to the males. An adult females pouch wont always look this way. It will only be open & streched out if she has been bred & had joeys in it. If she has not beed bred, it will still be seen, but will be a lot smaller & harder to find.

Joey Female

As you can see its much harder to tell the females pouch when they are young. They have basically a little slit in the skin of the belly. I personally think its easier to tell a female from a male when they are new born, it gets harder to tell as they get to the weaning point. Once into the mature adult hood it gets easier again.