Why Is My Guinea Pig Not Eating?

Why Is My Guinea Pig Not Eating?

Guinea pigs are known for their hearty appetites, so it can be concerning when your furry friend suddenly stops eating. Loss of appetite in guinea pigs is a serious issue that requires prompt attention. This article will explore the common reasons why guinea pigs may stop eating and what you can do to help.

Key Takeaways:

  • Loss of appetite in guinea pigs can be partial (inappetence) or complete (anorexia)
  • Common causes include stress, illness, dental problems, and environmental changes
  • Not eating for even a short period can be dangerous for guinea pigs
  • Seek veterinary care if your guinea pig refuses food for more than 12-24 hours
  • Syringe feeding may be necessary to prevent complications

What Causes Loss of Appetite in Guinea Pigs?

two guinea pigs eating carrot
Photo by Bonnie Kittle / Unsplash

There are several reasons why your guinea pig might stop eating. Understanding these potential causes can help you identify the problem and take appropriate action.

Dental Issues

Guinea pigs' teeth grow continuously throughout their lives. If their teeth become overgrown or misaligned, it can make eating painful or difficult. Signs of dental problems include:

  • Drooling
  • Difficulty chewing
  • Dropping food while eating
  • Weight loss

Regular dental check-ups and providing plenty of hay to chew on can help prevent dental issues.

Illness or Pain

Various health problems can cause a guinea pig to lose its appetite. Some common illnesses include:

  • Respiratory infections
  • Gastrointestinal issues
  • Urinary tract infections
  • Vitamin C deficiency (scurvy)

If your guinea pig shows other symptoms like lethargy, diarrhea, or unusual breathing, it's essential to consult a vet.

Stress and Environmental Changes

Guinea pigs are sensitive creatures, and changes in their environment can cause stress and impact their appetite. Potential stressors include:

  • Moving to a new home
  • Introduction of new pets
  • Loud noises or unfamiliar smells
  • Changes in routine or diet

Try to minimize changes in your guinea pig's environment and introduce any necessary changes gradually.

Dietary Issues

Sometimes, the problem might be with the food itself. Your guinea pig may stop eating if:

  • The food is stale or spoiled
  • There's a sudden change in diet
  • They don't have access to fresh water
  • The food bowl is dirty or in an inconvenient location

Always provide fresh, high-quality food and clean water daily.

How to Help a Guinea Pig That's Not Eating

brown white and black guinea pig on brown wooden log
Photo by Jiří Suchý / Unsplash

If you notice your guinea pig isn't eating, take these steps:

  1. Check for obvious causes: Look for signs of illness, dental problems, or environmental stressors.
  2. Offer favorite foods: Try tempting your pet with their favorite treats or vegetables.
  3. Ensure fresh water: Make sure clean water is easily accessible.
  4. Keep them warm: Guinea pigs may stop eating if they're too cold.
  5. Reduce stress: Create a quiet, comfortable environment.
  6. Visit the vet: If your guinea pig doesn't eat for more than 12-24 hours, seek professional help immediately.

Emergency Feeding for Guinea Pigs

In some cases, you may need to syringe feed your guinea pig to prevent serious health complications. Here's how:

  1. Use a commercial recovery food or a homemade mixture (consult your vet for recipes).
  2. Warm the food slightly to body temperature.
  3. Use a small syringe (without the needle) to slowly feed small amounts at a time. Start with about 1-2 ml every 2-3 hours.
  4. Never force-feed if your guinea pig is resisting, as this can cause choking.
  5. Monitor your guinea pig's weight daily during this period.

Always consult with a vet before starting syringe feeding, as they can provide guidance on proper technique and amounts specific to your guinea pig's needs.

Preventing Loss of Appetite in Guinea Pigs

While you can't prevent all cases of appetite loss, you can take steps to reduce the risk:

  • Provide a balanced diet with plenty of hay, fresh vegetables, and a small amount of pellets
  • Ensure access to clean, fresh water at all times
  • Keep their living area clean and stress-free
  • Schedule regular vet check-ups, including dental exams
  • Introduce any changes to diet or environment gradually


How long can a guinea pig go without eating?

Guinea pigs should never go more than 12-24 hours without eating. Their digestive systems need constant movement to function properly.

Can guinea pigs get depressed and stop eating?

Yes, guinea pigs can experience depression, which may lead to loss of appetite. This often happens due to loneliness or the loss of a companion.

Should I force-feed my guinea pig?

Never force-feed a guinea pig as it can lead to choking. If syringe feeding is necessary, it should be done gently and only under veterinary guidance.

Can dehydration cause a guinea pig to stop eating?

Yes, dehydration can cause a loss of appetite. Always ensure your guinea pig has access to fresh, clean water.

How can I tell if my guinea pig is in pain and not eating because of it?

Signs of pain in guinea pigs include hunched posture, lethargy, squeaking when touched, and changes in behavior. If you suspect your guinea pig is in pain, consult a vet immediately.


A guinea pig that stops eating is a serious concern that requires prompt attention. By understanding the potential causes and knowing how to respond, you can help ensure your furry friend stays healthy and happy. Remember, when in doubt, always consult with a veterinarian experienced in treating guinea pigs. With proper care and attention, you can help your guinea pig regain its appetite and return to its normal, munching self.