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My pig has white foam from its mouth. What's the problem and solution?

Updated On September 23rd, 2025

Hello, my pigs having white foams coming from their mouths the past few days. What is the problem and what can I do?

1 Answer

Most Helpful Answer

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Answered By Jessica Desrosiers

Veterinary Technician

Published on July 22nd, 2017

Without knowing more information about your pigs, it would be hard to tell. Pigs can foam at the mouth in anticipation of eating, and may foam or get excited as you are placing their food, especially younger pigs or piglets. Boars can also foam if there is a gilt/sow in heat nearby that is exciting to them. However, if they are showing any signs of illness such as decreased eating, pawing at their mouths or the ground, lethargy, weight loss, behavioral changes, etc, the foaming may indicate something underlying such as a virus, injury to the mouth, bacterial infection, or toxicity that should be checked out by a local vet.

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