5 min read
Strong Smelling Guinea Pig Urine: Causes and Fixes
Why does guinea pig pee smell so strong? Learn the usual cage causes, diet factors and the health signs that mean a vet check.
Most odor comes from the cage
Guinea pig urine itself has a mild smell. Strong ammonia odor usually builds up when urine sits in bedding too long, especially in corners where pigs like to toilet. Ammonia can irritate airways, so odor is worth fixing.
Common causes
- Spot cleaning less than daily.
- Bedding that does not absorb, or fleece without an absorbent layer.
- Hay piles soaked with urine.
- More pigs than the cage size supports.
Practical fixes
- Spot clean wet areas and droppings daily.
- Use a puppy pad or absorbent liner in toilet corners.
- Change hay in the kitchen area daily.
- Wash fleece regularly and check it still wicks.
When the smell may be health related
A sudden change in urine smell, combined with straining, blood, frequent peeing or a wet bottom, can point to a urinary problem. That needs a vet visit.
When to call an exotic vet
This guide is general education, not veterinary advice. If your guinea pig stops eating, stops producing droppings, struggles to breathe, bleeds, or seems suddenly quiet, contact an exotic vet the same day. Guinea pigs hide illness, so small changes matter.