Neil has run Paradise Pets Swindon since 1988. Sarah leads our small animal section and has worked with guinea pigs for over 40 years. Between them, that is 75 years of combined hands-on experience. This article is their urgent honest guide on what to do when your guinea pig has stopped moving — written for UK owners who need answers fast.
A lady walked into the shop on Saturday morning carrying a small carrier, and the moment Sarah saw her face, she knew. The lady was nearly in tears. “Sarah,” she said, “she’s not moving. She’s been sat in the same spot since last night. I don’t know what to do.”
That scene plays out in our shop more often than we would like. A guinea pig that has stopped moving. A guinea pig that is huddled in the corner of the hutch. A guinea pig that was fine yesterday and is unrecognisable today. The owners come in worried, sometimes panicked, almost always feeling like they have failed their animal in some way.
I want to say something straight to anyone reading this who is in that situation right now. A guinea pig that has stopped moving is in trouble, and you need to act fast. Not tomorrow. Not “let me see how she is in a few hours.” Today. Often within the hour.
After 75 years of combined experience between Sarah and me, we have learned this one thing for certain — the owners who act quickly are the ones whose guinea pigs recover. The ones who wait, hoping it will pass, are the ones who lose their pets. So please, if you are reading this with a stationary guinea pig at home, take it seriously.
This article walks you through what it usually means, the most common causes we see in the shop, and what to do right now to give your animal the best chance.
Why This Symptom Is So Serious
Let me explain something about guinea pigs that most owners do not know — and it is the reason this symptom is so urgent.
Guinea pigs are prey animals. In the wild, they live in groups and survive by being constantly alert, ready to flee from predators at a moment’s notice. A guinea pig that cannot run, that has to sit still, is a guinea pig that gets eaten. So over millions of years, they have evolved to hide weakness. They will keep eating, keep moving, keep looking normal even when they are seriously unwell — right up until they physically cannot do it anymore.
When you see a guinea pig that has stopped moving, that means the hiding has stopped. The animal has reached a point where it cannot pretend any longer. And that point, in our experience, usually comes after the animal has been unwell for a while — not at the start.
This is the most important thing we want you to understand. By the time your guinea pig is sitting still and unresponsive, the underlying problem has probably been developing for hours, sometimes days. You are not seeing the beginning of the issue. You are seeing the late stages.
- Do not wait to see if it improves. It rarely does on its own.
- Phone an exotic or small animal vet today — not tomorrow
- Check temperature — is the animal cold? Warm the environment immediately
- Check breathing — laboured or fast breathing is a vet emergency
- Try offering a piece of bell pepper or cucumber — if it will not eat, that is a serious sign
- If you are local to Swindon, ring us on 01793 512400 — we will help you work out the urgency
What “Not Moving” Actually Looks Like
Before we go into causes, let me make sure we are talking about the same thing — because there are a few situations that look like a guinea pig not moving but are actually something else.
Healthy guinea pigs do rest. They sleep, they doze, they sit quietly to digest food. A guinea pig that is briefly still but pops up when you approach the hutch, looks alert, and shows interest in food is probably fine.
What we are talking about in this article is different. It is the guinea pig that:
- Has been sitting in the same spot for hours, not just minutes
- Does not respond when you approach the hutch
- Has its head down, eyes half-closed, or hunched posture
- Is not eating, not drinking, not interested in food
- Is breathing in a way that looks laboured or uneven
- Feels unusually cold to the touch
- Has gone quiet — no squeaking, no rumbling, no normal sounds
That combination of signs is the warning. One of them on its own might not be serious — but together, or persisting for hours, they tell us the animal is in trouble.
The 6 Main Causes We See In The Shop
After 75 years of combined experience between Sarah and me, we can usually narrow down what is happening with a fair bit of accuracy. Here are the six most common causes we encounter, roughly in order of how often we see them.
Cause 1: Gastrointestinal Stasis (Gut Stasis) — The Most Common Killer
This is the one Sarah sees most often, and it is the one new owners least expect. Guinea pigs have a digestive system that is constantly moving — they graze almost continuously, and their gut needs that constant intake to keep working. When something disrupts that — stress, dental problems, dehydration, the wrong diet — the gut can slow down and eventually stop entirely.
That is gut stasis. And it is a genuine emergency.
A guinea pig in gut stasis will stop eating, stop pooing (or producing only tiny, dry droppings), become withdrawn, and gradually stop moving. The animal is in pain — sometimes severe pain — but it does not show it the way a dog or cat would. It just gets quieter and stiller.
- Has not eaten in several hours (guinea pigs should eat constantly)
- Droppings are absent, very small, or unusual in shape
- Sitting hunched, often with eyes half-closed
- Belly may feel hard or distended
- Animal seems uninterested in everything — food, you, other guinea pigs
- May grind teeth (a sign of pain in guinea pigs)
What to do
This is a same-day vet visit. Gut stasis can become fatal within 24 to 48 hours if not treated. The vet will usually give fluids, pain relief, and sometimes a gut-motility drug. While you are arranging the vet, you can try syringe-feeding a small amount of water or a specialist recovery food (Critical Care if you have it) — but the vet is non-negotiable.
Cause 2: Cold And Hypothermia
This is a particularly British problem. UK winters are unforgiving on outdoor guinea pigs, and even indoor guinea pigs in poorly heated rooms can become dangerously cold. Sarah has seen this every winter for 40 years.
Guinea pigs need a stable environment between 15 and 22°C. They struggle when temperatures drop below 10°C, and they can go into shock at sustained cold below 5°C. UK garages, outhouses, conservatories, and even some hallways drop well below this in winter.
A cold guinea pig will sit huddled, fluffed up if it has the energy, often in a corner of the hutch where it feels protected. It will be unresponsive, slow, and the body — particularly the feet and ears — will feel cold to the touch.
- Where is the hutch? Outdoor hutches, garages, conservatories all get dangerously cold in UK winters.
- What is the temperature right now? Below 10°C is concerning. Below 5°C is an emergency.
- Is the hutch properly insulated? Most starter hutches are not. They lose heat fast at night.
- Has there been a sudden drop in temperature? UK weather can drop 10°C in a day. Old guinea pigs especially struggle with sudden changes.
What to do
Bring the guinea pig indoors immediately. Warm it slowly — not directly on a radiator or with a hot water bottle pressed against it, which can shock the system. Wrap it gently in a warm towel, hold it close to your body, and let it warm up gradually. Once stable, get to a vet to check for any lasting damage. Cold guinea pigs can develop pneumonia, so even after warming, monitor closely.
Cause 3: Loss Of A Bonded Companion
This one catches owners off guard, but Sarah sees it regularly. Guinea pigs are intensely social animals — when they have lived with a bonded companion for years, the death of that companion can cause genuine grief in the survivor.
A guinea pig that has just lost its companion may stop moving, stop eating, and stop responding to people. The animal is grieving, in the most genuine sense of the word. We have seen guinea pigs decline within days of losing their friend.
This is not “they will get over it.” Without intervention, the grieving guinea pig can stop eating entirely and develop gut stasis on top of the emotional distress.
What to do
First — contact a vet to rule out physical illness. Sometimes both animals were unwell and we only noticed when one died. Once illness is ruled out, the priority is companionship. A lone guinea pig is at high risk of declining further. Come and see us at Paradise Pets — we have a proper introduction process for bonding new companions and we can guide you through it gently. The other option is to provide significantly more daily human interaction, but this is not a substitute for another guinea pig long-term.
Cause 4: Dental Problems
This is one of the most common issues Sarah sees, and it is also one of the most preventable. Guinea pig teeth grow continuously throughout their lives. They are designed to be worn down by constant grazing on hay and grass. When the diet is wrong, or when teeth do not align properly, they can overgrow — and overgrown teeth cut into the cheeks and tongue, making eating painful, sometimes impossible.
A guinea pig with dental problems will gradually stop eating, lose weight, develop wet fur around the mouth (from drooling), and eventually stop moving as it weakens.
- Animal eats less and less over days or weeks
- Drops food while trying to eat
- Wet fur or staining around the mouth and chin
- Visible weight loss — ribs and spine more prominent
- Bad breath in some cases
- Eventually becomes withdrawn and stops moving
What to do
This is a vet visit, and ideally an exotic vet who has experience with guinea pig dentistry. Overgrown teeth need to be filed down under sedation. Once done, the animal usually recovers quickly — but the underlying cause (often poor diet or genetics) needs addressing to prevent it recurring.
The best prevention is unlimited hay from day one. We covered this in detail in our guide on why guinea pigs are not easy pets — diet is the foundation of guinea pig health.
Cause 5: Respiratory Infection
Guinea pigs are particularly susceptible to respiratory infections — pneumonia, in particular, is one of the leading causes of death in pet guinea pigs in the UK. These infections can develop quickly, especially in animals that are already stressed, cold, or kept in damp conditions.
A guinea pig with a respiratory infection will sit still, breathe with effort, sometimes with a wet nose or eyes, and may make clicking or wheezing sounds when breathing. The animal often looks fluffed up and unwell.
- Laboured or rapid breathing — sometimes visible chest movement
- Clicking, wheezing, or crackling sounds when breathing
- Discharge from the nose or eyes
- Sneezing
- Loss of appetite and energy
- Hunched, miserable-looking posture
What to do
Same-day vet visit. Respiratory infections in guinea pigs progress fast and almost always need antibiotics. Without treatment, pneumonia can be fatal within a day or two. While you are arranging the vet, keep the animal warm, dry, and as stress-free as possible.
Cause 6: Old Age And End Of Life
This is the saddest cause on the list, but it does need to be talked about honestly. A guinea pig that is 6 or 7 years old or more, that has gradually slowed down over months, may be reaching the natural end of its life.
The signs are usually gradual rather than sudden — increasing sleeping, less interest in food, less responsive, eventually sitting still for long periods. This is heartbreaking but it is also the most natural thing in the world.
What to do
Even in old age cases, a vet visit is worthwhile to rule out treatable conditions. Sometimes what looks like “natural decline” is actually arthritis or a chronic infection that can be managed. If the vet confirms the animal is genuinely at end of life, your job becomes about comfort — warmth, easy access to food and water, gentle company, and quiet. There may also come a point where the kindest thing is to discuss euthanasia with your vet. That is a difficult conversation, but it is sometimes the right one.
What Sarah Checks When A Guinea Pig Comes In Not Moving
When an owner walks in with a guinea pig that is not moving, Sarah does not just guess. There is a process she goes through to narrow down the cause. Here is what it looks like.
- How old is the animal?
Young guinea pigs are unlikely to be facing end-of-life issues. Older ones may be dealing with multiple problems. - When did it stop moving?
Sudden (within hours) usually points to acute illness or injury. Gradual (over days) usually points to dental issues, infection, or chronic problems. - Is the animal eating and pooing?
A guinea pig that has not eaten in 12 hours is in serious trouble. Lack of droppings points strongly to gut stasis. - What is the environment like?
Temperature, draughts, damp, recent changes. Cold and damp are particularly dangerous for guinea pigs. - Has it lost a companion recently?
Grieving guinea pigs can decline rapidly. Always ask this. - How does it breathe?
Laboured breathing, clicking, wheezing — that points to respiratory infection. Vet emergency. - Is the body warm or cold?
A cold guinea pig is a hypothermic guinea pig. Warm it before anything else.
Five minutes of these questions usually narrows things down enough to know whether it is a vet emergency, a warming-up situation, or a longer-term care issue.
What Not To Do
Over the years, Sarah and I have also seen plenty of well-meaning owners do the wrong thing in a panic. Let us save you from the most common mistakes.
| What people do | Why it is wrong | What to do instead |
|---|---|---|
| Wait overnight | The animal can deteriorate fast — hours matter with guinea pigs | Phone a vet the same day, even if it is late |
| Force-feed water with a syringe | A weak guinea pig can aspirate fluid into the lungs and develop pneumonia | Offer water at floor level — let the animal drink if it can |
| Pick up and handle repeatedly | Stress alone can cause a sick guinea pig to crash | Minimal handling, quiet environment, low stress |
| Put on a hot water bottle directly | Direct heat can shock the system or cause burns | Warm the room gradually, hold the animal against your body |
| Try human medication | Most human medications are toxic to guinea pigs | Only give what an exotic vet has prescribed |
| Assume it is “just tired” | Guinea pigs do not stop moving for hours when healthy | Take it seriously — get advice |
How To Prevent This Happening
Most of the cases Sarah and I see could have been avoided with the right setup from the start. Here is what we tell every new guinea pig owner.
- Always keep two guinea pigs — never one. Companionship is essential for their wellbeing.
- Feed unlimited hay — this should make up 80% of their diet. It keeps the gut moving and the teeth worn down.
- Provide vitamin C daily — through bell peppers, leafy greens, or a supplement. Guinea pigs cannot make their own.
- Keep them at 15–22°C — UK winters and summers can both be dangerous. Move outdoor hutches indoors when temperatures drop.
- Weigh weekly — weight loss is the first sign of illness, often before any visible symptoms.
- Have an exotic vet on standby — find one before you need them, not when you are panicking.
- Observe daily — five minutes of watching them every day will catch problems early.
When To Skip The Shop And Go Straight To The Vet
We are always happy to have customers come in and talk things through. But there are situations where we will tell you straight — go to the vet now, do not stop here. These include:
- Animal has not eaten or pooed in over 12 hours
- Laboured or open-mouth breathing — respiratory emergency
- Visible injury, bleeding, or trauma
- Animal is unresponsive or seizing
- Very cold body temperature with no improvement after warming
- Symptoms developing rapidly over hours rather than days
For everything else — the gradual decline, the unclear cause, the animal that is quiet but not in obvious crisis — bring it in or send us a video, and we will help work out what is going on.
Frequently Asked Questions
Is it normal for a guinea pig to sit still for long periods?
No. Healthy guinea pigs are constantly moving, grazing, or interacting with each other. A guinea pig that sits still for hours, especially if combined with reduced eating, is showing a warning sign that needs investigating.
How long can a guinea pig survive without eating?
Less than you might think. Guinea pigs need to eat almost constantly because of their digestive system. A guinea pig that has not eaten for 12 hours is already in serious trouble. By 24 hours, the situation is critical.
What temperature is too cold for a guinea pig in the UK?
Guinea pigs need 15 to 22°C. Below 10°C they start to struggle. Below 5°C is dangerous and below freezing is potentially fatal. UK outdoor hutches in winter often drop well below safe temperatures overnight.
Can a guinea pig die of loneliness?
Not directly, but the chain of effects can be fatal. A lonely or grieving guinea pig often stops eating, which leads to gut stasis, which can be fatal within 48 hours. Companionship is genuinely essential for their wellbeing.
How quickly do I need to act if my guinea pig has stopped moving?
Hours, not days. Get advice the same day, and ideally see a vet within hours. The animals we have seen recover are almost always the ones whose owners acted immediately.
Where can I get urgent guinea pig advice in Swindon?
Come and see Sarah at Paradise Pets, Manor Garden Centre, Cheney Manor, Swindon SN2 2QJ. Or ring us on 01793 512400. For genuine emergencies, go straight to an exotic vet — we will help you decide which it is.
One Last Thing From Us
A guinea pig that has stopped moving is not a problem you can sleep on. We know how easy it is, when you are tired and worried, to think “let me see how she is in the morning.” Please do not do that with these animals. In Sarah’s 40 years of experience, the difference between a guinea pig that recovered and one that did not has more often than not been hours.
The lady I mentioned at the start of this article? Her guinea pig had gut stasis. We told her to go straight to the exotic vet, which she did. The vet gave fluids, pain relief, and gut motility medication. She brought the guinea pig home that evening, and within 48 hours it was eating again. Three weeks later, the lady came back with a thank-you card.
That is the outcome you want. And the only way to get it is to act when you see the signs — not the day after, not the week after, but today.
If you are reading this with a worried animal at home, do not hesitate. Phone an exotic vet. Or come and see Sarah if you are local and unsure. We have been doing this for over 75 years between us, and we would much rather help you sort it out today than see you come back later with a story that did not end well.
Guinea Pig In Trouble? Come And See Sarah Today — Or Phone A Vet
For genuine emergencies, go straight to an exotic vet. For everything else, bring the animal, bring a video, or just bring your questions. Sarah will take a proper look and tell you honestly what to do. Free advice, no obligation. Over 75 years of combined small animal expertise.
⭐ Customer Reviews
Great Quality Hutch
Bought a guinea pigs hutch and run combo, very happy with the service, the hutch was put in my car for me without even asking for help. The wood quality is very good, the instructions easy to follow and we are extremely happy with the fully built hutch. A good size for 2 guinea pigs
Response from Paradise Pets | Wiltshire
Thank you Melanie Latus Nice to provide services to you.
Best Bird Shop Around
It’s the best pet shop in and around Swindon. They always have an amazing selection of birds and all you need to keep them happy. I keep birds myself and the guys there are happy to answer questions and really know their stuff. I have seen budgies etc. in chain pet shops in the area looking really unhealthy and ill – I wouldn’t go anywhere else than Paradise Pets for animals.
Highly Recommended Bird Shop
I could not praise this shop enough. Really helped my Grandson buy his first bird and he’s loving it. Travelled from Somerset and was welcomed with open arms.
Great Shop with Competitive Prices
Great shop with amazing selection for small animals, hamsters, mice ect, highly recommend!
Also has a great selection for dogs & cats too & very competitive prices! 💖
Fantastic store and friendly staff
Fantastic store! Friendly and knowledgeable staff. Really helpful and much better range of bird products than anywhere else in and around Swindon. You can see that all their birds are happy and healthy. Our two new additions have settled in so easily, thanks to their advise. Also their prices were actually much better value on most things. For example, the cage we brought was nearly double the size of anything else available in Swindon, much higher quality…..and only £7 more than the nearest equivalent we could find in the area. If you are looking for anything to do with pet birds, then this is the place 👍
I recommend Pets Paradise for his services
thank you we picked up are young cocktail on Wednesday he is settling in well thank you for your help
