Male vs Female Ball Pythons — How to Tell the Difference

Updated: February 7, 2022 by Jennifer Munsell

Male vs Female Ball Python

What are the main differences between male vs female ball pythons?

Unlike birds, male and female ball pythons (and most snakes in general) do not present with different colors or plumage to make it easy for us to tell them apart. Determining a ball python’s sex can be tricky.

However, it is possible to tell the sexes apart, and you can do so without probing them or seeking the help of a veterinarian or breeder! Probing snakes always runs a risk of damaging their internal organs and should be avoided by everyone except trained professionals.

This article will help you figure out whether your ball python is male or female just by looking at a few of their physical characteristics and plopping them on a scale.

Read on to find out the three key differences between male and female ball pythons, how to look for them, and if male or female ball pythons make better pets.

Main Differences Between Male vs Female Ball Pythons

The main differences between male and female ball pythons are:

  • Male ball pythons are smaller in size, whereas females are thicker and heavier.
  • Male ball pythons have more pronounced anal spurs, whereas most females have very small anal spurs.
  • Male ball pythons have short, square, blunt tails, whereas female ball pythons have longer and pointier tails.

Neither sex of ball python is better than the other, as they share most of their personality traits. Male and female ball pythons are very similar, and without looking for these subtle differences, you would not know the difference in terms of behavior!

However, if you need a breeding pair, then obviously having a male and female snake is essential!

Male vs Female Ball Pythons: Overview

If you don’t know your ball python’s age or what differentiating traits to look for, it is practically impossible to tell the difference between male and females of the species.

Males and females share similar personality traits and behavioral patterns, so the true differences come down to the physical cues.

Appearance and Size

Ball pythons are sexually dimorphic. This means there are some slight physical differences between the males and females.

Typical of most snake species, the male ball python is actually smaller than the female. The table below lists the average size and weight for female and male ball pythons according to their ages.

AgeFemale Ball PythonMale Ball Python
LengthWeightLengthWeight
Hatchling10 to 17 in1.76 to 2.8 oz10 to 17 in1.6 to 2.8 oz
1 month10 to 17 in2.8 to 3.7 oz10 to 17 in2.5 to 3.5 oz
6 months20 to 27 in10 to 12.69 oz20 to 27 in9.7 to 12.69 oz
9 months25 to 35 in15.87 oz to 1 lb25 to 30 in14 to 15.87 oz
12 months2 ft1.4 to 1.76 lbs1.5 to 2 ft1.10 to 1.76 lbs
18 months2 to 3 ft2.2 to 3.08 lbs2 to 2.5 ft1.32 to 1.98 lbs
2 years2.5 to 3.5 ft2.64 to 3.96 lbs2 to 3 ft1.76 to 2.42 lbs
3 years3 to 5 ft2.64 to 4.40 lbs2.5 to 3.5 ft1.98 to 2.64 lbs
4+ years4 to 6 ft4.40 to 6.61 lbs2.5 to 3.5 ft1.98 to 2.64 lbs

In only approximately 14% of all snake species, males are larger than females! In the case of ball pythons, males are smaller than the females.

This means female ball pythons are, on average, larger than the males. When it comes to how this affects their care in captivity, female pythons require slightly larger enclosures than males.

Unless you know precisely how old your snake is and what kind of diet you’ve been offering them, it may be almost impossible to determine their sex by size alone.

You will have to decide what ultimate size snake you are willing to deal with in the long run. If you want a slightly smaller ball python, then a male would be best to get. However, if you want a six-foot ball python, then make sure you are getting a female! Just remember to accommodate her size with a large enclosure.

Male vs Female Ball Pythons: Overview

Anal Spurs

Once upon a time, ball pythons’ ancestors actually had hind legs! Their anal spurs are what is left over of those legs after many thousands of years of evolution. You can find these spurs on the underside of your snake near their vent.

Anal spurs are bony protrusions on either side of the cloaca. The cloaca is a small opening located at the end of your snake’s body and beginning of their tail. These spurs are very pronounced on old world snakes such as our ball pythons and boas.

Most male ball pythons will have larger anal spurs than females. Some males are even able to move these spurs. They also use these spurs to grip onto females while mating.

However, sometimes, these spurs will be small or almost nonexistent, even on males! You cannot rely on them alone to determine a snake’s sex.

Female ball pythons also often have anal spurs. These spurs are generally much smaller and less prominent than male’s anal spurs, and they are much softer and less rigid. Females are usually unable to move their spurs freely.

There has been some speculation that female ball pythons use these spurs to hold onto prey; however, this is very unlikely and has been subject to much debate considering how small and weak the spurs are.

Anal spurs are not a hard and fast rule when it comes to determining sex in ball pythons. They are unique to the snake itself, so some female ball pythons may have very large and pronounced anal spurs. It also isn’t terribly uncommon for males to have very small ones.

Therefore, you should not rely solely on the appearance of your snake’s anal spurs to determine their sex. Always use all three indicators of sex listed here together to come to an informed decision.

Tail Thickness

Male and female ball pythons have distinct bodies and tails.

The body of a ball python houses all of the snake’s internal organs and important parts of their nervous, digestive, skeletal, and other crucial body systems. The cloaca is located at the end of the snake’s body where their tail begins. The cloaca is the multipurpose entry and exit hole for reptiles.

Ball pythons poop, pee, lay eggs, give birth, and mate all through their cloacas.

From their cloacas onward is all tail. A ball python’s tail is primarily made up of muscle and fat. The shape of this part of their body can help you determine the snake’s sex.

A male ball python’s tail will typically be much broader or fatter right after the cloaca. It is bigger here because this is where the snake’s hemipenes are stored.

The hemipenes are the two penises that ball pythons use to mate with. There are two of them so that no matter what side of the female’s tail the male ends up on, he will have success!

After the cloaca, the tail will start to narrow down and it will end in a blunt, square tip.

A female ball python’s body ends at the cloaca just like the male’s. However, there is no thickening at this point. The female’s tail usually tapers off after her cloaca to a delicate point at the end rather resembling than the male’s more blunt, square tail tip.

It is difficult to tell the difference between the two tail shapes unless you have a male and a female ball python right next to each other to compare their tails or you are very experienced at ball python husbandry and are able to recognize them.

Neither tail shape is better than the other in any significant way, nor does it really affect their care–they are merely shaped differently because male ball pythons need wider tails to store their hemipenes.

Male vs Female Ball Pythons: Is One Better Than the Other?

Male vs Female Ball Pythons: Is One Better Than the Other?

The three key differences between male and female ball pythons are their body sizes, the presence and appearance of their anal spurs, and the shape of their tails. Who the “winner” is will ultimately come down to the size of the snake you want. Female snakes tend to be larger, but they also require slightly larger enclosures.

If you want a ball python because they make great pets, are easy to handle, and are simple to take care of, then figure out how much space you are willing to devote to it. If you can only manage a 40 gallon enclosure, then you should definitely get a male.

However, if you can manage a 60+ gallon enclosure, then feel free to get a female ball python!

FAQs About Male and Female Ball Pythons

Can I house two male ball pythons together?

Male ball pythons are not typically territorial outside of mating time, but some males get stressed out by sharing an enclosure with another snake. It’s possible to house two of them together, but their enclosure needs to be increased by at least 10 gallons for each snake. In addition to the size increase, there needs to be the same number of hides as there are snakes as well as a larger water bowl.

The two snakes also must not be fed together. While they may not be competing for food, ball pythons’ prey drives are high, and they may bite one of their housemates by accident. This would be very unfortunate because it is completely avoidable.

All of these rules apply to female ball pythons, too! It’s generally best to avoid cohabitation unless you are an experienced reptile keeper, but it is possible.

Can I house a male and female ball python together?

When you house a male and female snake in the same enclosure, you run the risk of accidental babies! Unless you are planning on breeding your ball pythons, you shouldn’t house males and females together.

Is there a difference in husbandry for male and female ball pythons?

The enclosure setup, handling routines, and general care requirements of male and female ball pythons are identical. The main difference in care will be the size of the enclosure. Adult ball pythons in general need a 40+ gallon enclosure at the absolute minimum, but since female pythons are slightly larger than males, they do best in 60+ gallon enclosures.

The only real difference in care between the two sexes is the need for additional calcium supplements for females. When female ball pythons are producing eggs, they use up a lot of energy and will need additional calcium to prevent them from developing metabolic bone disease.

Balling Off…

There are no real personality or temperament differences when it comes to male vs female ball pythons. The biggest difference and the one that matters the most is the ultimate size they will grow to as adults.

Adult females are typically much larger than adult males, which impacts the size of the enclosure they need to be housed in as well as the size or quantity of the food they eat. Female ball pythons also need additional calcium supplements to stay healthy when they are laying eggs.

If you want a huge, six-foot ball python, then go with a female. However, if you want a smaller, perhaps three- or four-foot long snake that loves a good handling session and is a tiny bit simpler to house and care for, then go for a male ball python!

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