Identifying common skin, eye, and respiratory issues before they become emergencies
Important: This guide helps you identify what might be wrong with your ball python so you can take appropriate action. It is not a substitute for veterinary diagnosis. Every condition described here requires confirmation from a qualified reptile veterinarian. Misdiagnosis can delay proper care and worsen outcomes.
How to Use This Guide
When you notice something wrong with your ball python, this guide will help you identify what the symptom might indicate, understand the urgency level, know what to document before your vet visit, and take appropriate interim action while arranging care.
Each condition includes a severity rating:
| Severity | Meaning | Action |
|---|---|---|
| Critical | Life-threatening if untreated | Vet within 24-48 hours |
| Urgent | Can progress rapidly | Vet within 1 week |
| Moderate | Needs attention but stable | Schedule vet appointment |
| Monitor | May resolve with husbandry correction | Observe closely, vet if worsens |
Skin Conditions
Red or Rust-Colored Discoloration
Pink, red, or rust-colored areas on the scales may appear as spots, patches, or tracks along the body. Location matters when determining the cause:
| Location | Likely Causes |
|---|---|
| Belly (ventral) | Scale rot, thermal burn, septicemia |
| Along spine (dorsal) | Retained shed with secondary infection, substrate contact issue |
| Tail tip | Bacterial infection, retained shed, trauma |
| Random patches | Mite damage, fungal infection, early septicemia |
Possibility 1
Bacterial Dermatitis (Scale Rot)
Urgent to CriticalScale rot is a bacterial infection of the skin caused by opportunistic bacteria that thrive in moist, dirty conditions.
Symptoms:
- Brown, red, or black discoloration of scales
- Scales may appear raised or swollen
- Blisters or fluid-filled vesicles (early stage)
- Open sores or ulcers (advanced stage)
- Foul, rotten smell
- Usually starts on belly or lower sides
Common causes: Substrate too wet or dirty, humidity too high without adequate ventilation, thermal burns creating entry point for bacteria, trauma or abrasions.
What to document: Photos of affected areas (top, sides, belly), current substrate type, humidity and temperature readings, when you first noticed symptoms, recent shed history.
Interim action while awaiting vet: Move to paper towel substrate, clean affected areas with dilute chlorhexidine or betadine, keep enclosure clean and dry, maintain appropriate temperatures.
Possibility 2
Fungal or Yeast Infection
UrgentFungal infections often occur secondary to retained shed or in overly humid conditions.
Symptoms:
- Red or rust discoloration, often following retained shed pattern
- Musty, "dirty feet," or bread-like smell (distinctive for yeast)
- May see white or gray patches in some fungal infections
- Often associated with incomplete sheds
- Typically does NOT have the foul rotting smell of bacterial infection
Common causes: Retained shed creating moist microenvironment, humidity too high, poor ventilation, organic substrate holding moisture.
Key diagnostic clue: The smell tells you a lot. Bacterial infections smell rotten or foul. Fungal and yeast infections smell musty, like dirty feet or bread.
Interim action while awaiting vet: Address any retained shed with warm water soaks, move to paper towel substrate, antifungal treatment may be appropriate (miconazole, clotrimazole), reduce ambient humidity and provide humid hide instead.
Possibility 3
Thermal Burns
UrgentBurns occur when snakes have direct contact with unregulated heat sources.
Symptoms:
- Red, pink, or darkened scales
- Usually on belly or sides (contact areas)
- May see blistering
- Pattern often matches heat source contact area
- No smell initially (smell develops if secondary infection occurs)
Common causes: Heat mat without thermostat, heat mat set too high, heat lamp too close, hot rocks (these should never be used).
Interim action while awaiting vet: Remove or correct heat source immediately, measure actual surface temperature with temp gun, clean affected area gently, do not apply ice or cold water, keep area clean and apply antibiotic ointment if skin is broken.
Possibility 4
Early Septicemia
CriticalSepticemia is a systemic bacterial infection of the bloodstream. It is life-threatening.
Symptoms:
- Small purplish-red spots on belly (petechiae)
- Red discoloration may spread rapidly
- Lethargy, weakness
- Loss of appetite
- Open-mouth breathing
- Pink or red gums
- Snake may feel limp or weak when handled
This is an emergency. Septicemia can kill within days. Seek emergency veterinary care immediately. Do not delay for a regular appointment.
Blisters or Raised Scales
Fluid-filled bumps under scales, or scales that appear raised or puffy, indicate either early-stage bacterial infection or mite infestation.
Possibility 1
Blister Disease (Early Scale Rot)
UrgentBlister disease is the early stage of bacterial dermatitis before ulceration occurs. Small fluid-filled vesicles appear under scales, usually on belly or lower sides. Scales may appear raised and feel bumpy when you run your hand along the snake.
Interim action: Paper towel substrate immediately, reduce humidity, clean enclosure thoroughly, vet visit to prevent progression to ulcerative stage.
Possibility 2
Mite Infestation
UrgentMites cause raised scales as they feed and as blood pools at bite sites.
Symptoms:
- Tiny black or red moving dots (the mites themselves)
- Raised scales from blood pooling
- Snake soaking excessively
- Rubbing against cage furniture
- White dust or debris in water bowl (mite waste or drowned mites)
- Restlessness, irritability
Where to look for mites: Around eyes, in labial pits (heat-sensing pits along upper lip), under chin, around vent, between scales anywhere on body, in water bowl.
Interim action: Isolate affected snake, remove all substrate and use paper towels, treat snake with appropriate miticide (consult vet for product), deep clean and treat enclosure, check and potentially treat entire collection. Mites spread rapidly between enclosures.
Scale Discoloration
Scales that have changed color abnormally can indicate various conditions:
| Color | Possible Causes |
|---|---|
| Brown or tan | Early scale rot, old burn healing, normal aging in some morphs |
| Black | Necrosis (dead tissue), severe burn, advanced infection |
| Yellow or green | Bacterial infection, pus accumulation |
| Gray or white | Scarring from healed injury, fungal infection, pre-shed |
The key question: Is this new, or has it always been there? If new and spreading, treat as potential infection. If black necrotic tissue is present, seek immediate vet care.
Eye Conditions
Fluid or Cloudiness Under Eye Cap
The eye appears cloudy, swollen, or has visible fluid buildup. This is different from normal pre-shed blue or cloudy appearance.
Possibility 1
Subspectacular Abscess
CriticalInfection under the spectacle (the clear scale covering the eye).
Symptoms:
- Fluid visible under eye cap
- Eye appears swollen or bulging
- May be cloudy or discolored
- Usually affects one eye (but can be both)
- NOT associated with shed cycle
This requires surgical intervention. The spectacle must be lanced and drained by a veterinarian, then flushed with antibiotics. Do NOT attempt to treat at home. Puncturing the spectacle incorrectly can cause permanent eye damage or blindness.
Possibility 2
Retained Spectacle (Eye Cap)
Moderate to UrgentThe eye cap did not shed with the rest of the skin.
Symptoms:
- Eye appears dull, wrinkled, or cloudy
- May see edges of old spectacle
- Often bilateral (both eyes)
- Associated with recent incomplete shed
- No fluid buildup or swelling
Interim action: Increase humidity with humid hide and light misting, warm water soaks (80-85°F, 15-20 minutes), allow snake to crawl through damp warm towel. Do NOT attempt to peel retained spectacle off manually. If multiple layers retained or does not resolve in 1-2 sheds, schedule vet visit.
Respiratory Conditions
Open-Mouth Breathing
CriticalBall pythons are obligate nose breathers. Open-mouth breathing indicates severe respiratory distress.
Symptoms: Mouth held open at rest, visible effort to breathe, may see mucus or bubbles, often accompanied by wheezing or crackling sounds, lethargy and weakness.
This is an emergency. Seek veterinary care immediately.
Interim action: Increase temperatures to upper end of range (90-92°F warm side), reduce humidity if excessive, keep snake calm and minimize handling, seek emergency vet care.
Wheezing, Clicking, or Crackling Sounds
UrgentRespiratory infection is common in ball pythons kept in suboptimal conditions.
Symptoms:
- Audible breathing sounds (wheezing, clicking, crackling)
- Excessive mucus from nose or mouth
- Bubbles from nostrils
- Frequent yawning or stretching of neck
- Decreased appetite
- Lethargy
Common causes: Temperatures too low, humidity too high or too low, poor ventilation, dirty enclosure, stress or immunosuppression.
Interim action: Raise temperatures to 90-92°F warm side, ensure proper humidity (50-60%), improve ventilation, keep enclosure clean, schedule vet visit for antibiotics.
Mouth Conditions
Mouth Rot (Infectious Stomatitis)
Urgent to CriticalBacterial infection of the mouth and gums.
Symptoms:
- Red or purple spots on gums (early)
- Cheesy, cottage cheese-like material along gum line
- Swelling of mouth or jaw
- Foul smell from mouth
- Excessive saliva or mucus
- Reluctance to eat
- May see bleeding
Important: Mouth rot can spread. It can ascend to cause eye infections or descend to cause respiratory infections.
Interim action: Do not force feed, keep warm, schedule vet visit promptly. Vet will debride infected tissue and prescribe antibiotics.
Shedding Problems
Retained Shed (Dysecdysis)
Monitor to ModerateSymptoms:
- Shed comes off in pieces instead of one piece
- Patches of old skin remain on snake
- Dull, dry appearance
- Retained eye caps (spectacles)
- Retained tail tip (can cause constriction and necrosis)
Common causes: Humidity too low, dehydration, no rough surfaces for initiating shed, mites, underlying illness.
Interim action: Provide humid hide (damp sphagnum moss in enclosed hide), warm water soaks, increase ambient humidity temporarily, ensure access to rough surfaces, gently assist removal with damp towel (do not force). Retained tail tips and eye caps require vet visit if not resolved in 1-2 sheds.
Chronic retained shed on tail tip can cut off circulation and cause necrosis, requiring amputation. Do not ignore.
Neurological Signs
Stargazing, Corkscrewing, or Inability to Right
CriticalSymptoms:
- Head pointed upward for extended periods (stargazing)
- Twisting or corkscrewing of body
- Unable to right itself when placed on back
- Disorientation, loss of coordination
- May strike randomly or seem "drunk"
Possible causes: Inclusion Body Disease (IBD) which is viral, fatal, and contagious; severe respiratory infection affecting nervous system; overheating (heat stroke); toxin exposure; nutritional deficiency; trauma.
About IBD: If IBD is suspected, isolate the snake immediately. IBD is contagious between pythons and boas, often transmitted by mites. There is no treatment, and affected snakes are typically euthanized. Definitive diagnosis requires biopsy.
Interim action: Isolate from collection, check temperatures to rule out overheating, vet visit for diagnosis. If IBD suspected, maintain strict quarantine.
Behavioral Changes
Sudden Loss of Appetite
Ball pythons are notorious for fasting, especially during breeding season or seasonal changes. However, prolonged fasting with other symptoms warrants investigation.
When to be concerned: Fasting more than 2-3 months with weight loss, accompanied by other symptoms (lethargy, discharge, etc.), regurgitation of meals, visible weight loss or spine becoming prominent.
Possible causes: Normal seasonal fasting, stress, improper temperatures or humidity, respiratory infection, parasites (internal or external), mouth rot, reproductive activity, IBD or other systemic illness.
Excessive Soaking
Possible causes: Mites (snake trying to drown them), too hot (trying to cool down), dehydration, pre-shed behavior (normal), skin irritation or infection, stress.
Lethargy or Weakness
Urgent to CriticalA healthy ball python should have good muscle tone and respond to handling.
Warning signs: Limp or weak when handled, does not grip or hold onto you, no tongue flicking, does not respond to stimuli, spends all time in one spot.
This often indicates systemic illness. Vet visit warranted.
What to Do Before Your Vet Visit
Document Everything
- Photos: Take clear, well-lit photos of any abnormalities
- Videos: Record any behavioral abnormalities (breathing sounds, neurological signs)
- History: Write down when you first noticed symptoms and any progression
- Husbandry log: Note temperatures, humidity, feeding history, shed dates
Prepare Your Information
Your vet will want to know: age and sex of snake, how long you have had it, enclosure type and size, heat source and thermostat type, hot spot and cool side temperatures, humidity levels, substrate type, feeding schedule and prey type and size, last successful meal, last shed date and whether it was complete, any recent changes to husbandry, other animals in collection, any recent acquisitions.
Transport Safely
Use a secure, escape-proof container. Provide warmth with hand warmers wrapped in cloth, not touching snake. Keep transport time minimal. Avoid extreme temperatures.
How THE RACK Helps You Catch Problems Early
When health issues arise, having detailed records makes diagnosis faster and treatment more effective. THE RACK gives you tools to track and share critical information with your vet.
Activity Tracking: Log feeding, sheds, weight, and behavioral observations for each animal. When something seems off, you can instantly see the pattern. Did she refuse her last three meals? When was her last complete shed? THE RACK shows you the timeline so you can identify problems before they become emergencies.
Report Card: Generate a downloadable health summary for any animal in your collection. Take this to your vet appointment so they have the complete picture: feeding history, shed dates, weight trends, and any notes you have logged. No more trying to remember details under pressure.
Quarantine Mode: When you isolate a sick animal or bring in new stock, use quarantine tracking to monitor them separately. Set the quarantine period, log daily observations, and know exactly when the animal is cleared. This is especially critical when dealing with potential collection-level outbreaks.
The breeders who catch problems early are the ones keeping records. THE RACK makes it simple.
Collection Outbreak Warning Signs
If you keep multiple snakes, watch for patterns: same symptoms appearing in multiple animals, symptoms spreading through a rack system, multiple snakes in same room affected.
This suggests environmental cause or contagious disease. Take immediate action:
- Isolate affected animals
- Review shared factors (substrate batch, prey source, handling practices)
- Inspect entire collection
- Deep clean shared equipment
- Contact veterinarian for collection-level guidance
Prevention is Better Than Treatment
Most ball python health issues stem from husbandry problems. Maintaining proper conditions prevents the majority of illnesses:
| Parameter | Target Range |
|---|---|
| Hot spot | 88-92°F |
| Cool side | 76-80°F |
| Ambient humidity | 50-60% |
| Shed humidity | 65-75% (humid hide) |
Substrate matters. Organic substrates that hold moisture (cypress mulch, coconut fiber, forest floor) can promote bacterial and fungal growth if conditions are not perfect. Paper towels and newspaper are safest for animals with compromised health.
Quarantine new animals. 90 days minimum, ideally in a separate room. Many diseases have long incubation periods.
Regular health checks. Handle your snakes periodically and look them over. Check eyes, mouth, belly, vent area, and overall body condition. Catching problems early makes treatment easier.
When in Doubt, Call the Vet
This guide is designed to help you identify potential problems, not replace professional veterinary care. Reptiles hide illness well, and by the time symptoms are obvious, conditions may be advanced.
Find a reptile vet before you need one. Not all veterinarians are experienced with reptiles. The Association of Reptilian and Amphibian Veterinarians (ARAV) maintains a directory at arav.org.
Trust your instincts. If something seems wrong with your snake, it probably is. Early intervention leads to better outcomes and lower treatment costs.
Catch Problems Before They Become Emergencies
The signs of illness are often hiding in your records. A snake that refused three meals in a row. An incomplete shed you forgot about. Weight slowly dropping over months.
THE RACK tracks feeding, shedding, weight, and activity for every animal in your collection. It spots patterns you might miss and flags concerns before they become crises.
When you do need a vet, THE RACK generates a Report Card for each animal: a complete health history including feeding records, weight trends, shed quality, and any logged health notes. Walk into your appointment with documentation that helps your vet help your snake.
Stop relying on memory. Start breeding with data.