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Why is my guinea pig losing weight but still eating? Runny eyes too.

Updated On September 23rd, 2025

Pet's info: Small Animal | Guinea Pig | Male | unneutered | 4 years old

My 4 yr old Male Guinea pig is eating well but has lost so much weight was a big chunky boy in 3 weeks hes tiny runny eyes but eating drinking well , he doesn't move unless for food

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on October 30th, 2019

Weight loss, this can be caused by many things. Visit your veterinarian as soon as possible so Donald can have an examination. Causes of weight loss include dental problems, liver or kidney diseases, intestinal disease, endocrine disease, infection and toxins — just to name a few. Your veterinarian, using his or her skills of examination and possibly some tests, can best tell what is wrong with your guinea pig.

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