Why is My Guinea Pig Not Eating?

If your guinea pig appears lethargic or disinterested in eating, taking them to an experienced veterinarian with knowledge about guinea pig medicine would likely be the best decision.

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As soon as your pet shows signs of illness – from simple digestive discomfort to fatal blockage – it is vitally important that they visit a veterinarian immediately. Weigh and transport immediately!



Guinea pigs are known for being quite greedy animals, making a lack of appetite all the more alarming. After just one day without eating they may experience rapid weight loss and other health complications as their dehydration and calories depletion worsens. Guinea pigs do have various options available to them to provide essential calories and nutrition such as special pellets or high fiber diets that may help meet these requirements.

If your guinea pig has stopped eating or moving normally, it is vitally important that they visit a veterinarian who specializes in exotics immediately. Any sudden change could indicate sickness; any disease or illness could also contribute to this phenomenon so prompt veterinary evaluation could result in better health for your pet – this is especially important if their weight has decreased, movements have become restricted and/or they produce less waste material than usual.


Concern is warranted when your pet rejects food without apparent cause, especially if this sudden change occurs without warning.

An unusually unresponsive guinea pig could be suffering from any number of health conditions or disorders; to get help quickly they need to visit a qualified exotics veterinarian immediately.

Guinea pigs that do not eat are at risk of dehydration and can quickly become seriously ill or even die due to this lack of water in their system. When dehydrated, their skin becomes dry while their eyes become sunken in.

To avoid this situation, try encouraging your guinea pig to drink water frequently and provide it with Pedialyte or another product high in calories and fiber like those available through veterinarians or pet stores.


Be mindful that guinea pigs cannot survive without food and water. After more than 12 hours without eating or water, they will suffer severe digestive issues and could potentially die within 48 hours.

Guinea Pigs require a balanced population of “good” bacteria in their gastrointestinal tract for normal function, but should it become disturbed, dangerous “bad” bacteria can overgrow and produce painful gas, inhibit food digestion and cause diarrhea – leading to potentially lethal diarrhea outbreaks and death.

To avoid this from happening, feed your guinea pig ample hay and pellets daily as well as providing fresh greens (unless instructed to withhold by your vet), clean water that has been lifted above their bedding so it cannot polluted, as well as fresh greens on an ongoing basis. If they appear lethargic or shy when fed or hiding away when offered fresh greens – contact an exotics veterinarian immediately if any problems arise!

Veterinary Care

Symptoms that your guinea pig has stopped eating or their gut movement has slowed include weight loss, no appetite and gut movements that appear slow or stopped altogether. These are serious indicators that something may be amiss and require immediate medical intervention.

Guinea pigs are hindgut fermenters and require their food to pass quickly through their digestive systems or they will develop dangerous and even life-threatening gastrointestinal stasis.

Guinea pigs are adept at hiding illness, and you may not notice something is amiss until it’s too late. If your guinea pig starts acting strange, losing weight, and not eating, they need to see a veterinarian as soon as possible who specializes in caring for cavies to assess what might be going wrong and treat any painful issues such as drooling, overgrown teeth or swollen gums immediately; treating these quickly will prevent further issues in the future.