Guinea pigs are usually eager eaters, so it can be worrying when they stop eating. There are several reasons why a guinea pig might lose its appetite. Common causes include dental problems, stress, illness, and poor diet.
A guinea pig that’s not eating needs prompt attention. Dental issues like overgrown teeth can make chewing painful. Stress from changes in routine or environment may also put a guinea pig off its food. Respiratory infections and other illnesses often reduce appetite too. Sometimes the problem is simply an unappetizing or imbalanced diet.
Weight loss, reduced activity, and changes in droppings are signs a guinea pig isn’t eating enough. Providing fresh hay and vegetables can help stimulate appetite. But if eating doesn’t improve quickly, a vet check is important. Guinea pigs can develop serious complications when they don’t eat, so addressing the underlying cause is key to getting them eating again.