Food & NutritionMy guinea pig has hair loss. Is it his bedding, diet, or health issue?
Oxbow is a good quality company for diet but should not be used as a sole diet. Loose hay (timothy hay) should also be provided, free choice, to allow wear of teeth. Is the area moist, as in drooling? Dental disease is not uncommon in guinea pigs. Cheek teeth are difficult to examine at home but typically the animals with cheek teeth concerns are either drooling or having difficulty prehending/chewing food. Other things that can cause some hair loss under the chin is rubbing the chin on items (trying to stick his face through wire bars), bacterial or fungal skin infections or contact allergies. Have you recently changes bedding material? If the chin is moist (drooling), a veterinarian with experience with exotic companion mammals, should be able to help you.
Updated on September 24th, 2025
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