How To Sex Your Gecko

May 01, 2019 2 min read

Sexing Your Crested Gecko

How can you tell if your crested gecko is a male or a female? Sometimes it's quite easy to tell, especially if your gecko is a bit older. Once male crested geckos hit maturity they develop very obvious hemipenal bulges just below the vent at the base of the tail. This can happen sometimes as early as 6 months old but generally doesn't show up until around a year or so old. Mature female crested geckos will have no hemipenal bulge. So if your gecko isn't too young, you're in luck and this should be easy. Here's what to look for.

Male Crested Gecko Hemipenal Bulge
male crested gecko hemipenal bulge

Female Crested Gecko (No Bulge)

Now if you want to get an idea of what gender your gecko is before it has neared maturity, things get a bit trickier. There are a couple of things you will need. The first thing is called a loupe which is basically a type of magnifier. We sell a nice one that has both 30x and 60x magnifications and LED lights to help you see what you're trying to see. 

Pangea Loupe

Also recommended is a clear 8 oz deli cup and a foam buffing pad. This method was first shown to us by Limey of Royal Reptilia so we refer to it as "The Limey Method". These pads are used to secure the gecko and view the under bits a little more easily. So it's just a matter of placing the gecko in the cup, placing the foam pad over the gecko while applying just a tiny bit of pressure on the gecko so that the area you are viewing is gently pressed up against the clear surface. If you are good at wrestling geckos and getting them to stay still you will not absolutely need these, but they sure do make things easier.

Now using your LED Magnifying loupe, view the area just above the vent and along the inner thighs. You are looking for femoral pores which develop on males between 6 grams up to about 15 grams. If you see pores you have male. If you don't see any pores and the gecko is over 15 grams, you likely have a female. I say likely because we've been tricked once or twice by a really late bloomer. So what do these pores look like you ask? They look like a tiny round circle within a scale. Here are a few pictures to help you identify pores on your crested gecko. 


It can take a little bit of practice and patience but once you've done it a few times you will be a pro. I hope this article was helpful to you. As always, thanks for choosing Pangea!