Congratulations top top your brand-new snake! it’s a young! Wait, no… it’s a girl! Actually… who even knows?!

You see, many new line owners (opens in a new tab) desire to discover out just how to sex your snake, even if it is it it is in for reproduction purposes or for specify name purposes. However, the reality of the issue is…

Sexing a line is less complicated said than done!

You see, snakes aren’t prefer dogs, humans, or other mammals. Their covert reproductive organs do it nearly impossible come tell males from females based on physical appearance.

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Some species display small, crucial differences between the genders. Usually, identify this take away a trained eye and studying numerous comparison photos. Now, there room some surefire ways to recognize the sex of her snake based on its inner anatomy – yet you may need to obtain an expert involved.

Depending top top how specific you must be, let’s comment on how girlfriend might be able to determine – or make an education guess – her snake’s gender!

Table of Contents

How to identify the Sex of your Snake

How Old go a Snake need to Be come Tell its Gender?

Some that the techniques we will talk about can be offered from day among a snake’s life, and how the breeder or pet store determines the sex that the snake before selling it.

Other approaches (mainly the ones based upon external appearance) call for that her snake get (or has almost reached) sex-related maturity.

Sexual maturity have the right to vary a little bit between different species but generally falls into the two-to-four-year-old range.

How to identify the Sex of her Snake

From optimal to bottom, we’ll start from less reliable, beginner-friendly methods to surefire, expert-only ways of sexing a snake, or identify its gender.

Size and also Appearance Differences, or sex-related Dimorphism

This technique will depend heavily on the species of your snake.

Not all varieties of snake display screen sexual dimorphism or significant size differences between the genders. Friend will require to identify which specific differences apply to males and which ones use to females for your species, also in those that do. Additionally, sexual dimorphism usually isn’t evident until the line reaches sex-related maturity.

In ball pythons, females space slightly larger 보다 males. In anacondas, females are about 4.7 times larger than males! Conversely, v rat snakes, males are typically roughly 14% bigger than females.

Some vipers display a related trait referred to as sexual dichromatism, or various colors because that males and females. Europe adders are infamous for this trait, yet there are other species, as well.

Buyer’s Tip: when you have determined on which species you are going to purchase, or if you currently have her snake, perform some an ext reading and photo evaluations to find out if the form of line you very own displays any type of sexual dimorphism.

Anal Spurs

Down appropriate freaky deformity or sneaky mystery weapon? Actually, anal spurs room neither. In truth, they’re the remnants the hind legs the specific varieties once had actually thousands of years earlier before advancement kicked in.

This method of sexing a snake usually isn’t very reliable, yet it’s beneficial if you are only looking for an educated guess.

In many python and boa species, you will certainly see little “spurs” – bony remnants that the hind foot of your ancestors.

These look prefer rose thorns and also are discovered on your snake’s belly, on the right and left next of your snake’s cloaca.

In many species, the spur on a male space much larger and an ext well-defined 보다 a female’s spurs. Males will usage their spurs during combat with other males and assist grab ~ above the female during mating.

Note that, due to the fact that spurs space the remnants of behind limbs, some snakes perform NOT have actually visible spurs.

Only snakes that haven’t adjusted or evolved very much still exhibit this item of anatomy, favor boas and pythons. Rat snakes and other colubrids generally do not have actually them.

As aforementioned, this isn’t an extremely reliable method…

A female might have substantial spurs, or a male can have small spurs. Just like you and I, each snake’s body composition is individual and also unique.

If you room only in search of a mite so you have the right to stop calling your scaly pal “it” and also start calling castle “he” or “she,” this is a good tool.

If you have actually your heart collection on purchase a male or woman for breeding purposes, carry out NOT count on spurs alone.

Unless disappointment’s her thing…

Tail Shape

To the trained eye, this method of sexing a snake deserve to be VERY reliable.

However, the takes year of practice and dozens of snake to to compare to consistently and also successfully identify a snake’s gender based upon tail shape, alone. If you just own one snake, or you own two snakes of the same gender, and this is your an initial attempt, you more than likely will not be able to make any type of conclusions.

However, if you placed a male and a female snake side-by-side, there is a definitive distinction in the form of your tails.

The reproductive offal of male cg-tower.coms are called hemipenes. Hemipenes space housed within in the snake’s cloaca and also are essentially two penises.

Other types of, such as bearded dragons, also have hemipenes.

If you space looking in ~ a male snake’s tail, girlfriend may notification these features:

A longer size to accommodate the hemipenes.Thicker close to the cloaca, then suddenly tapers ~ 8+ subcaudal scales or 2-3″, depending on the complete length of the snake.

On the various other hand, a female’s tail is typically:

Shorter in comparisonEvenly tapered from cloaca to tail tip.


Popping is usually an ext successful as soon as performed on younger and also smaller snakes.

Older, larger snakes generally have enough muscle tone to hold their guts inside.

Too much pressure while popping can injure a snake, for this reason it’s appropriate to have actually someone with experience present you how to carry out this technique in human being at first.

Popping a line is completed by applying firm however gentle push to her snake’s tail on the belly side, around three-quarters that the method from the cloaca to the tail tip. Without releasing any kind of of the force, you on slide your thumb up the snake’s tail towards its cloaca.

In males, this can push the hemipenes up and out the the vent. They will pop out, looking choose two reddish tubes. Nothing will come the end if it’s a female.

Again, I must reiterate the this technique CAN be harmful if not done correctly.

You likewise run the danger of popping a “false female.” If the an approach is carry out incorrectly and there isn’t sufficient pressure, nothing will certainly pop out, even if that is a male.


Probing is the preferred an approach for any kind of intermediate to experienced level snake keeper. If you’ve never test this technique, it have the right to be useful to have actually an competent keeper show you exactly how it’s done.

There are also many youtube videos easily accessible that demonstrate the method.

You will must purchase a kit the probes explicitly designed for performing this procedure. Some civilization use other tools, however that deserve to be unsafe. Luckily, the probes room reusable indefinitely.

The probe is sanitized, lubricated, then placed downwards into the cloaca or vent, towards the tail tip, on the right or left side.

Please execute NOT attempt to walk up in the direction of the snake’s head, or straight towards the snake’s spine.

There will certainly be a little of resistance when you first insert the probe, but there have to be no need to apply any type of noticeable pressure when you are inside.

If you are probing a female, you will certainly have gotten in one the her odor glands, and you will only be able to insert the probe the tantamount depth that one to three subcaudal (bottom tail) scales. You will certainly be in among the pockets that home a hemipenis if you are probing a male. Friend will be able to insert the probe the identical depth of nine to fifteen subcaudal scales, on average.

The pressure provided to insert the probe should be very mild, and also once the is inserted, you should need to apply virtually no press to find the finish of the hemipenis or odor gland pocket.

It deserve to be easy to it is in squeamish around this technique and assume the it is a perceptible area for a snake.

Still, many experienced keepers have declared that their snakes don’t seem to reaction any more than they perform to any type of other procedure that needs the pet to be restrained.

It is safer and also more reliable 보다 popping and is in its entirety the preferred technique of determining a snake’s gender amongst snake caretakers.


An ultrasound is, there is no a doubt, the MOST foolproof means of identify a snake’s gender, albeit slightly over the top and also expensive because that the everyday hobby line owner or breeder.

This technique is frequently used by huge zoos and also animal parks, especially with snakes and also other cg-tower.coms utilized in a conservation breeding program. In addition to identify the snake’s gender, ultrasound machines also allow veterinary staff and keepers to check out if a female line is emerging egg follicles and how much along they are.

Some big-time snake breeders have captured on to this benefits and also purchased a little ultrasound an equipment to usage on their breeding animals and also babies.

If friend don’t desire to invest in an ultrasound an equipment and desire visual check of a snake’s reproductive organs, you can also take your pet come your regional exotic veterinarian, and they will have the ability to perform the ultrasound for you.

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Wrapping Up exactly how to Sex a Snake

Now the you’re equipped with the knowledge and know-how of sexing your serpent, the next action is to decide which method sounds the most ideal for you and also proceed through the necessary steps.

Whether that method ordering her snake probe kit online or making an ultrasound appointment v your veterinarian, congratulations top top the upcoming gender reveal of your snake!