Finding your gecko completely still and unresponsive is alarming — but gecko inactivity has many possible causes, ranging from completely normal to genuinely serious. Here's how to tell them apart.
Normal Reasons Geckos Are Inactive
Brumation (Seasonal Slowdown)
Many gecko species, particularly leopard geckos, undergo a period of reduced activity in cooler months called brumation — similar to mammalian hibernation but less complete. During brumation, leopard geckos may:
- Eat very little or nothing for weeks
- Sleep far more than usual
- Spend most time in a cool hide
- Move slowly when disturbed but respond normally
Brumation typically occurs in late fall and winter, usually in geckos over 1 year old, and is triggered by temperature and light cycle changes. It's normal and should not require intervention if the gecko is otherwise healthy.
Shedding
Before and during a shed (ecdysis), geckos often become inactive and hide. The skin takes on a dull, whitish appearance. They may refuse food during this period. This is completely normal and typically resolves within 1-2 days.
Post-Feeding
After eating a large meal, geckos — especially leopard geckos — often rest quietly for hours while digesting. This is normal and expected.
Night/Day Cycle
Most geckos are crepuscular or nocturnal — they're naturally most active at dawn, dusk, and night. Finding your gecko immobile during the day is completely normal if it's asleep.
Concerning Reasons a Gecko Is Not Moving
Hypothermia (Too Cold)
If enclosure temperatures drop below appropriate levels, geckos become lethargic and immobile. A gecko that feels cold to the touch, is unresponsive, and doesn't react when gently picked up may be hypothermic. Check all enclosure temperatures immediately. Leopard geckos need a warm side of 88-92°F (under-tank heater) and a cool side of 75-80°F.
Impaction
Impaction occurs when the gecko ingests substrate material (loose sand, gravel, walnut shell) or an oversized food item that blocks the digestive tract. Signs: not eating, not defecating for 2+ weeks, distended abdomen, straining, and complete inactivity. Impaction is a veterinary emergency.
Preventive tip: house geckos on solid substrate (tile, paper towels, reptile carpet) rather than loose particulate.
Metabolic Bone Disease (MBD)
Calcium deficiency and inadequate UVB (if the species requires it) causes MBD — soft, deformed bones, tremors, inability to support body weight, and weakness. An affected gecko may appear to "melt" into the ground and be unable to lift itself or walk properly.
Cryptosporidiosis
Crypto (Cryptosporidium) is a serious parasitic infection in leopard geckos causing chronic weight loss, regurgitation, and a characteristic "stick tail" appearance (the tail and body waste away despite normal or increased feeding). There is no definitive cure.
Severe Dehydration
A severely dehydrated gecko becomes lethargic, inactive, and the skin may look dry and "stuck." Sunken eyes are a telltale sign in leopard geckos. Mild dehydration can be addressed with a shallow warm water soak; severe cases need veterinary fluids.
Emergency Warning Signs
See a reptile vet promptly if your gecko:
- Does not respond when gently touched or picked up
- Has a distended or hard abdomen
- Has sunken eyes and skin that doesn't spring back when gently pinched
- Is losing weight visibly — the tail is thin, bony, or wasting
- Has tremors or shaking
- Has been not eating AND not defecating for more than 3 weeks
What To Do at Home
- Check temperatures first — use a reliable digital probe thermometer
- Offer a lukewarm soak (water level no higher than the gecko's chin) for 15 minutes if dehydration is suspected
- Check for retained shed around the toes, eyes, and tail tip
- Do not force-feed without veterinary guidance
- Contact a reptile vet — ask specifically for exotic animal experience
How Voyage Can Help
Voyage AI Vet can help you assess whether your gecko's inactivity is seasonal brumation or a condition needing exotic vet care — describe your gecko's species, age, enclosure temperatures, and how long they've been inactive. Get an instant assessment any time, starting at $4.99/month. For exotic pets, always consult a vet with exotic animal experience.
This article is for informational purposes only and is not a substitute for professional veterinary advice. For exotic pets, always consult a vet with exotic animal experience.