General guidance — not a diagnosis. When in doubt, call your vet.
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 (ARAV Reptile & Amphibian Resources, 2024). 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
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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
Frequently Asked Questions
Why is my gecko not moving? Inactivity ranges from normal to serious. Normal reasons include brumation (a seasonal winter slowdown, especially in leopard geckos over 1 year), shedding (they hide and turn dull/whitish), resting after a large meal, and simply being asleep by day (most geckos are crepuscular or nocturnal). Concerning reasons include hypothermia, impaction, metabolic bone disease, cryptosporidiosis, and severe dehydration.
Is it normal for a leopard gecko to be inactive in winter? Often, yes. Many geckos, especially leopard geckos over a year old, undergo brumation — a seasonal slowdown triggered by cooler temperatures and shorter light cycles. They may eat little or nothing for weeks, sleep more, and stay in a cool hide, but still respond normally when disturbed. It's normal and doesn't require intervention if the gecko is otherwise healthy.
When is a gecko not moving an emergency? See a reptile vet promptly if your gecko doesn't respond when gently touched or picked up, has a distended or hard abdomen, has sunken eyes and skin that doesn't spring back, is visibly losing weight (a thin, bony, or wasting tail), has tremors or shaking, or has been not eating AND not defecating for more than 3 weeks.
What temperatures do leopard geckos need? A leopard gecko needs a warm side of 88-92°F (from an under-tank heater) and a cool side of 75-80°F. If the enclosure drops below appropriate levels, geckos become lethargic and immobile — a gecko that feels cold to the touch and is unresponsive may be hypothermic, so check all temperatures with a reliable digital probe thermometer immediately.
What should I do if my gecko isn't moving? Check temperatures first with a digital probe thermometer, offer a lukewarm soak (water no higher than the chin) for 15 minutes if dehydration is suspected, check for retained shed around the toes, eyes, and tail tip, don't force-feed without veterinary guidance, and contact a reptile-experienced exotic vet.
Still Not Sure if Your Gecko Needs a Vet?
When you're not sure if this is wait-and-see or call-tonight, Voyage AI Vet triages in under 2 minutes. Describe what you're seeing in chat, share photos of what you're seeing — your gecko's posture, any visible signs, and the affected area, or hop on a live video call if you want a second pair of eyes. Every answer comes with citations to the actual veterinary literature it's pulling from — so you see exactly where the guidance comes from, not just a chatbot's word.