How to Sex a Leopard Gecko?

It can be nearly impossible to tell the difference between a male and a female leopard gecko unless you know what to look for. If you purchased your leopard gecko directly from a breeder then they may have already told you what sex your gecko is. Male and female leopard geckos incubate at different temperatures while in their eggs but if you don’t know the incubation temperature of your gecko you’ll have to look in the right place to know what sex they are. The underside of a leopard gecko holds the secrets to tell what sex they are but to see if your gecko is a boy or a girl you’ll have to safely pick them up first.

As a gecko matures, these round pores that look like dots become quite prominent and exude a waxy material. Some would say female pre-anal pores are barely noticeable and they do not exude the waxy substance that you’ll find in male leopard geckos.

How can you tell if a leopard gecko is a male or female?

For adult leopard geckos, look at the region between their legs, on the underside. If you see a row of small pores forming a ‘V’ and a slight bulging below the vent, it’s a boy. If you don’t see any bulges and the pores are either not visible or are too small, it’s a girl.

How do I sex my leopard geckos?

The most reliable method of leopard gecko sexing is inspecting the areas before and after the vent. Males have pre-anal pores, which looks like a small line of dots across the underside of the back legs in front of the vent. They also have two oval bulges behind the vent – these indicate hemipenes.

At what weight can you sex a leopard gecko?

Leopard geckos become sexually mature when their weight reaches 35 to 40 g, at roughly 18 to 24 months of age. Breeding is encouraged if there are one male and at least two females in the colony.

How do you sex a gecko day?

Giant day geckos can be sexed by looking for femoral pores between the hind legs. Males will have a row of these pores, whereas females will not.

To sex a leopard gecko, you will look at its underside near the tail. Male leopard geckos will have visible preanal pores in a V shape and hemipenal bulges near the cloaca, along with large femoral pores along the hind limbs. Female leopard geckos do not have visible pores or bulges.

Youll want to learn how to tell the sex, so you make sure you dont accidentally end up with some leo babies! This section deals with the four best ways
for how to tell if a leopard gecko is male or female for the typical owner.

Make sure to read carefully as some
methods similar to these may result in injury for your pets. The incubation temperature determines gender for leopard geckos. The most obvious way for sexing is to look
at the pre-anal pores in older leopard geckos.

These pores are common for most reptiles
and control a lot of the pheromones related to breeding. Again, these pores on males become more
prominent as they age, so its important not to use this with young leopard
geckos. This is a key way for how to tell if
leopard gecko is male or female.

Where the tail meets the body on the other
side of the vent is where males have hemipenal bulges. If you see two bulges on either side of
the center, the leopard gecko is male. This is a solid confirmation of the geckos sex, but this may result in serious injury if you dont know exactly what youre doing.

There are several other considerations when choosing between a male or a female leopard gecko. If you are planning to breed your geckos, it is crucial to ensure you have a male and a female. Knowing the sex of your leopard gecko is also important because males and females display different behavioral characteristics.

A male and female gecko may be housed together for short periods of time during mating. Egg binding, also known as dystocia, occurs when a female gecko is not receiving the nutrients she needs for proper egg-laying. Due to a lack of calcium, the female leo will not be able to have the contractions necessary to expel the eggs.

The gecko may strain to lay the eggs, resulting in a cloacal prolapse. Male leopard geckos may suffer from hemipenes prolapse due to impaction or infection. The hemipenes are the small reproductive organs of a male leo, and they are usually not visible except during mating.

Hemipenal prolapse happens when these organs do not retract back into the geckos body. If your male leopard gecko is suffering from hemipenes prolapse, it is vital to seek veterinary care. The biggest mistake people make is
attempting to sex them too early.

A baby leopard gecko will reach its full adult size between 18-24 months of age. The sex of a leopard gecko is determined by the temperature at which the eggs were incubated. To produce male leos, incubate at a temperature range between 88-91 degrees Fahrenheit (32 C).

To hatch females, incubate the eggs at cooler temperatures between 79-81 degrees Fahrenheit (27 C). For a chance of having both sexes, incubate the leopard gecko eggs at a steady temperature range of 85-87 degrees Fahrenheit (30 C). A female leopard gecko is capable of retaining sperm for up to nine months.

After nine months, the female leopard gecko will need to mate with a male again to produce fertile eggs.

Leopard geckos can be sexed after they have grown 5-6 inches long. The most reliable method of leopard gecko sexing is inspecting the areas before and after the vent.

Got a pet leopard gecko and wondering whether its a boy or a girl? Telling the gender of a leo is known as sexing. Heres how you can find out whether yours is a he or a she.

If your leopard gecko is a male, you will see two distinct bulges below its vent, near the base of the tail. Heres a helpful video that shows how you can check the traits to identify the males and the females.

Even though the video is a little bit blurry, at 2:08, you can clearly see the V-shaped pores and the two big bulges on a male, which you cant see on a female. If you dont have experience handling a leopard gecko, it is important to know how to do it when you are sexing it. Some people, while sexing, tend to press against the hemipenile bumps to push the male reproductive organ out.

Ideally, you need to wait till it is ten months old when the signs that determine its sex are more visible. A female leopard gecko can lay eggs even if it is housed alone, that is, even if it has not mated with a male. AttributeAdult MalesAdult FemalesAverage Weight 8 to 11 inches7 to 8 inches Average Size 60 to 80 g50 to 70 gWeight and Size comparison of Male and Female leopard geckosSome male leopard geckos can be a bit more aggressive.

Also, some leopard gecko owners claim that males have a healthier appetite than females, though there is no scientific evidence for this. If you are not an expert on leopard geckos and havent handled a lot many leos, telling the gender from the weight or size is nearly impossible. This means that the environmental temperature around the eggs can decide the gender of the leopard geckos.

GenderTemperature MalesA constant 88 F to 91 F for the entire incubation periodFemales79 F to 81 F for the first three weeks; thereafter 88 F to 90 FMixedA constant temperature of 85 F to 87 F for the entire incubation periodIncubation temperatures to influence the genderThis is why breeders will probably be able to tell you accurately what the gender of your pet baby leopard gecko is. But remember that in the process of identifying the gender, be very gentle so as to not injure or harm your pet.

Picking up Your Leopard Gecko

Sometimes the hardest part of sexing leopard geckos is simply in the handling of them. Geckos are known to “drop” their tails if they feel threatened or scared and this is a definite risk if your leopard gecko is not accustomed to being picked up. Dropping a tail is when a gecko causes its tail to detach from its body so to calm your gecko and avoid a dropped tail, approach them slowly in its enclosure.Gently stroke your leopard gecko and slide your hand underneath them to scoop them up. Do not grab your gecko if they are not used to being picked up. Gently but firmly hold their body, not their tail. If your gecko struggles to get free, release your hold and allow them to walk out of your hands. If your gecko feels trapped then they are more likely to drop their tail to aid in their escape. Once your gecko gets used to being held this way you can peak between your fingers and look at their underside so that you can sex them.

Check With The Breeder/Vet

The first is obvious: check with the breeder or a vet.A vet will have the tools to help you if necessary.They’ll also have the know-how to do this safely and without injuring your pet.Breeders likely have this know-how as well, but they have an even bigger leg up on the vets in this instance.The incubation temperature determines gender for leopard geckos.Lower temps result in females, and higher ones result in males.It’s simple to control, and your breeder most likely has a record of what they were bred at.Here’s a quick table to help you out with this:This rule isn’t 100%, but it’s close.Read more details on how to incubate leopard gecko eggs.

Pre-Anal Pores

The most obvious way for sexing is to look at the pre-anal pores in older leopard geckos.For this tactic, the gecko needs to be at least one year or older for a clear indication.On the underside of their tails towards the end of their end is the vent or cloacal opening.This is where the droppings come out.Before this (closer to the head) is a V-shaped row of pores.These pores release pheromones and other related body chemicals.At adulthood, the male’s pores are larger and clearly seen.They may even feel waxy to the touch.Females have these pores, but they are so small compared to the males, you may not even notice them unless you’re looking for them.As young leopard geckos, these pores are all small, so it’s hard to differentiate between males and females with this at a young age.

Femoral Pores

Along the same lines are the pores on the back of the legs (or leg elbows, some call them).For males, these pores are large circles, while the female has much smaller ones.These pores are common for most reptiles and control a lot of the pheromones related to breeding.Again, these pores on males become more prominent as they age, so it’s important not to use this with young leopard geckos.

Hemipenal Bulge

Another way to sex your pet is to look for hemipenal bulges.This is a key way for how to tell if leopard gecko is male or female.Where the tail meets the body on the other side of the vent is where males have hemipenal bulges.Essentially, these bulges store the two hemipenes the male will use in mating.Gently handle the leopard gecko and lift their tail or look at their underside (if they lost their tail).If you see two bulges on either side of the center, the leopard gecko is male.This test starts to be useful as early as six months.However, because you need to handle and pull on the tail a little, the chance of the gecko dropping its tail is higher.We recommend just being patient and waiting until they’re older to use one of the others.It may be helpful to shine a flashlight against the top of the gecko’s body.This will let you “see” through their skin and look for two shadows, indicating the two hemipenal bulges.This is a solid confirmation of the gecko’s sex, but this may result in serious injury if you don’t know exactly what you’re doing.

Housing and Temperament

Male leopard geckos tend to be more aggressive, and two males should never be housed in the same enclosure.Female leos are more docile, and it is possible to house multiple females in the same tank as long as there is enough space for each of them.A male and female gecko may be housed together for short periods of time during mating.Look for any signs of aggression between the pair, and separate them if necessary.

Lifespan

The lifespan of the two genders of leopard geckos is slightly different as well.In captivity, females live for 6-10 years, while males live an average of 10-20 years.Producing and laying eggs takes a significant toll on a female gecko’s body, and breeder females will usually have a shortened lifespan as a result.

Female Leopard Gecko Care

If a female leo is having difficulty laying her eggs, she will become egg-bound.Egg binding, also known as dystocia, occurs when a female gecko is not receiving the nutrients she needs for proper egg-laying.Due to a lack of calcium, the female leo will not be able to have the contractions necessary to expel the eggs.The gecko may strain to lay the eggs, resulting in a cloacal prolapse.Dystocia is a very serious issue, and you will need to seek veterinary care as soon as possible.

Male Leopard Gecko Care

Male leopard geckos may suffer from hemipenes prolapse due to impaction or infection.The hemipenes are the small reproductive organs of a male leo, and they are usually not visible except during mating.Hemipenal prolapse happens when these organs do not retract back into the gecko’s body.If your male leopard gecko is suffering from hemipenes prolapse, it is vital to seek veterinary care.Attempting to fix the prolapse yourself may cause injury to the gecko’s hemipenes.

Conclusion

Now you know how to sex a leopard gecko.It’s not tricky once you learn about doing it safely for your pet.The biggest mistake people make is attempting to sex them too early.Remember, we recommend waiting until they’re at least six months old; it’s better to wait until they’re a year old.Knowing your pet’s gender is fun, especially if you want to use a gender-specific name or begin breeding them.Just take care to do this safely without stressing out your pet.When in doubt, talk to a breeder or vet. These people know the best way to get it done.

Do leopard geckos have sex chromosomes?

Leopard geckos do not have sex chromosomes.The sex of a leopard gecko is determined by the temperature at which the eggs were incubated.To produce male leos, incubate at a temperature range between 88-91° degrees Fahrenheit (32° C).To hatch females, incubate the eggs at cooler temperatures between 79-81° degrees Fahrenheit (27° C).For a chance of having both sexes, incubate the leopard gecko eggs at a steady temperature range of 85-87° degrees Fahrenheit (30° C).

Hemipenile bulges

If your leopard gecko is a male, you will see two distinct bulges below its vent, near the base of the tail. The two bulges are on the two sides of the vent.Each bulge houses the male reproductive organ of the gecko which will come out during mating. You will not find these bulges in a female gecko. These bulges or bumps are the easiest way to tell the gender of your pet leo.

Pre-anal pores

Pre-anal pores are present in both males and females. They are just at the front of the vent on the underside and look like small dots. However, they are more distinct in males.In females, the pre-anal pores are smaller and are barely visible. In males, the dots are clear and they become more prominent as the male leo matures.You will see the holes forming a ‘V’ shape above the vent. Also, the pre-anal pores will secret a waxy material in male geckos. The waxy material is released by males to scent their territory.Hence, there will often be a waxy build-up around the femoral pores. There is no secretion from the females’ pre-anal pores and hence, you won’t notice any build-up.

Femoral pores on the legs

Femoral pores are also located on the hind legs, on the thighs. They look like rows of small white dots. The pores are used to secret ‘pheromones’. Leopard geckos can smell the pheromones on each other to determine the gender. These pores, too, are distinctly visible in male leopard geckos.In female geckos, even though the pores are present, they are barely noticeable. Also, the pores are larger in males.Here’s a helpful video that shows how you can check the traits to identify the males and the females.