Ball Python Python regius
The most widely kept pet snake in the world, and an exceptionally placid one β when startled it curls into a ball, which is where the name comes from. Two barriers: it is CITES Appendix II so provenance matters, and it is notorious for going off food for long stretches, which alarms most first-time keepers.
βοΈ Legal status Β· Restricted / permit required
All pythons are CITES-listed and the ball python is Appendix II. Keeping one requires lawful origin with traceable captive-breeding documentation and the relevant permits, and many jurisdictions regulate large snakes separately. Insist on complete paperwork and check your local rules β any claim that they can simply be bought at a pet market is not credible.
Check another species βKey parameters
- Lifespan
- 20-30 years, occasionally over 40
- Adult size
- 100-150 cm total length, females larger and much heavier-bodied
- Diet
- Strictly rodents. Frozen mice sized to the snake's girth, thawed and warmed, every 7-14 days
- Temperature
- Warm side 31-32 Β°C, cool side 25-27 Β°C, not below 23 Β°C at night
- Humidity
- 55-65%, raised to 70% during a shed
β Suits you if
Anyone comfortable feeding frozen rodents, willing to handle provenance paperwork, and looking for a snake that will be around for two or three decades
π« Do not get one if
Anyone who will panic when the snake skips meals for weeks; homes that cannot hold steady humidity; anyone unwilling to deal with documentation
Starter equipment list
Buy all of it before the animal arrives, not after.
- Enclosure: 120Γ60Γ45 cm minimum for an adult, and it must lock securely
- Two hides, one per side, and both must be tight β ball pythons depend heavily on feeling enclosed, and this is the factor most associated with feeding refusal
- Heat mat or radiant panel plus thermostat on one side, creating a thermal gradient
- Substrate: coco coir, reptile bark or cypress mulch to help hold humidity. Never cedar
- Water bowl large enough for the whole snake to soak in
- Hygrometer and infrared temperature gun β ball pythons are far more humidity-sensitive than corn snakes
Most common beginner mistakes
- 1 Panicking about hunger strikes β an adult ball python refusing food for weeks or even months through autumn and winter is normal. Weigh it regularly instead: stable weight means keep observing, and only sustained weight loss or accompanying symptoms warrant a vet
- 2 A large enclosure with no hides β open space keeps a ball python permanently stressed and is a direct cause of feeding refusal. Hides should be small enough that it has to squeeze in
- 3 Handling a new arrival β leave it undisturbed for two weeks, then build up from short sessions
- 4 Feeding live rodents β ball pythons strike cautiously, and a live rodent left in the enclosure will chew on the snake and cause serious wounds
- 5 Humidity too low β far fussier than a corn snake, and shortfalls show up as incomplete sheds and retained eye caps
- 6 Buying an animal of unknown origin β Appendix II species, so this is legal exposure, not a way to save money
Common illnesses
| Illness | Common cause | What you'll see |
|---|---|---|
| Respiratory infection | Temperatures too low, or high humidity with poor ventilation | Open-mouth breathing, mucus at the nostrils, audible wheezing, head held tilted upward |
| Scale rot | Substrate kept persistently damp and soiled | Brown or reddened patches on the belly scales, scales lifting and weeping |
| Incomplete shed | Insufficient humidity | Skin coming off in fragments, retained eye caps, a constricting ring of old skin at the tail tip |
| Stomatitis (mouth rot) | Low temperatures suppressing immunity, oral injury | Swollen reddened mouth, cheesy discharge, refusing food |
| Snake mites | New animals not quarantined, or introduced with substrate | Black specks between scales, constant soaking, dark grit in the water bowl |
Frequently asked
Is it normal for a ball python to not eat for months?
For an adult in autumn, winter or breeding season, yes β this is characteristic of the species rather than illness. Weigh weekly: if weight loss stays under about 10%, behaviour is normal and it sheds on schedule, keep observing. Rapid weight loss, open-mouth breathing or anything wrong in the mouth means a vet. Treat refusal in a juvenile far more seriously.
Do ball pythons bite? Are they dangerous?
Non-venomous, and among the most docile snakes kept. Their startle response is to ball up rather than strike. Bites on adults are rare and usually happen when a hand is mistaken for food. They are also nowhere near large enough to pose a constriction risk to a person.
Why does it stay hidden all the time?
Ball pythons are nocturnal ambush predators, and spending the day tucked in a hide is normal behaviour, not a sign of poor condition. What should worry you is the opposite β persistent roaming and pressing against the glass usually means something in the environment is wrong, most often temperature or a lack of suitably tight hides.