Cat Diarrhea: Causes and When to Worry

Diarrhea in cats is common and usually resolves quickly. But persistent or severe diarrhea can lead to dehydration and may signal an underlying condition.

Common Causes

• Dietary changes or food sensitivities

• Stress (moving, new pets, schedule changes)

• Parasites (especially in kittens and outdoor cats)

• Bacterial or viral infections

• Inflammatory bowel disease

• Eating something they shouldn’t have

Home Care for Mild Cases

If your cat has mild diarrhea but is otherwise acting normal (eating, drinking, energetic):

• Ensure plenty of fresh water to prevent dehydration

• Consider a temporary bland diet (plain boiled chicken)

• A probiotic supplement may help restore gut balance

• Monitor litter box output closely

When to See the Vet

Don’t wait if diarrhea is accompanied by blood, lethargy, vomiting, fever, or lasts more than 48 hours. Kittens and senior cats are especially vulnerable to dehydration. See our when to call the vet guide.

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