Common Ball Python Health Issues and What Causes Them

Common Ball Python Health Issues and What Causes Them

Ball pythons are generally hardy snakes, but they're also known for being sensitive to husbandry mistakes in specific, predictable ways. Most of what shows up on this list traces back to temperature, humidity, or hygiene, which means most of it is preventable. See our Ball Python tank setup guide for the husbandry side, and our full Ball Python care guide for everything else.

Respiratory Infection

This is the signature ball python illness, the one every keeper should be able to recognize. It's caused by temperatures that run too low, incorrect humidity, a dirty enclosure, or ongoing stress, and vets typically see a seasonal spike each winter as enclosures cool down along with the weather outside.

Watch for: wheezing, open-mouth breathing, visible mucus or bubbles around the mouth or nostrils, nasal discharge, lethargy, and sometimes gaping.

This needs vet-prescribed antibiotics, not a wait-and-see approach. Left untreated, it can progress to pneumonia and become fatal. If you notice any breathing symptoms, raise the enclosure temperature and check humidity immediately, isolate the snake if you have others, and get to a vet as soon as possible.

Scale Rot (Infectious Dermatitis)

Caused by damp, dirty substrate, excess moisture, or general poor hygiene in the enclosure. Look for discolored belly scales (brown, reddish, or yellow), blisters or sores, scales that feel soft or damaged, and a foul odor.

Move your snake to a clean, dry enclosure immediately and correct the humidity level. Mild cases respond to antiseptic or antibiotic treatment, but anything spreading or blistering needs a vet.

Mouth Rot (Infectious Stomatitis)

Often shows up secondary to stress, injury, or ongoing poor husbandry. Signs include pinpoint hemorrhages on the gums, thick excess mucus or pus, cheesy-looking buildup in the mouth, a sour smell, visible swelling, open-mouth breathing, and refusing food. This needs veterinary treatment, it doesn't resolve on its own.

Mites

Look for tiny red or black specks on the scales or clustered around the eyes, along with excessive soaking or rubbing against enclosure surfaces and a drop in appetite. Mites require both treating the snake and deep-cleaning the entire enclosure, since they can persist in the environment even after the snake looks clear.

Shedding Problems (Dysecdysis)

Caused by humidity that's too low. Look for flaky, patchy shed that comes off in pieces rather than one clean piece, and check carefully for retained eye caps after any shed that looked incomplete. Prevent this by keeping baseline humidity at 55 to 70%, raising it to 70 to 80% during the shed cycle itself, and providing a humid hide year-round.

Thermal Burns

A common, entirely preventable injury caused by heat sources running without a thermostat. This is exactly why every heat element in a ball python enclosure needs to be thermostat-controlled, no exceptions.

When to See a Vet

• Any wheezing, open-mouth breathing, or visible mucus, this one is urgent
• Belly scale discoloration that's spreading or blistering
• Signs of mouth rot
• A prolapse (keep the area moist and get to a vet as soon as possible)
• Visible mites

A Note on Appetite Refusal

Ball pythons are famous for going on hunger strikes, and a healthy-looking snake in good body condition that refuses a meal or two isn't automatically a health emergency. If husbandry checks out (correct temperature, correct humidity, no other symptoms), it's often reasonable to offer food again in a couple of weeks before assuming something is wrong. If refusal continues alongside weight loss or any other symptom from this list, that's when it's time to get a vet involved.

Our Ball Python cost guide covers what routine and emergency vet care typically runs, or browse the rest of our Snakes care guide category.

Sources & Further Reading