Stomach Problems in Horses

Horses have simple stomachs that work much like humans. A horse is designed to eat small amounts of roughage throughout the day. Changes in eating habits and exposure to parasites cause stomach problems in horses.

  1. Parasites

    • Horses with internal parasites experience stomach problems. Common parasites include: bots, pinworms, roundworms and bloodworms. Signs that parasites may be present are diarrhea, dehydration and weight loss. Treatment includes keeping pastures clean and having a routine deworming program for your horse.

    Colic

    • Colic causes pain, bloating and gas in horses. There are several causes, such as food change, worms, dehydration and tumors. Generally, signs of colic occur when a horse tries to relieve the pain by rolling and lying down. This causes further damage and pain if left untreated.

    Ulcers

    • Just like humans, horses under stress that perform on a regular basis, such as racehorses, are prone to stomach ulcers. Since acid is released into a horse's stomach 24 hours a day, not providing enough hay or roughage can cause ulcers to form. Additionally, horses with ulcers may show no symptoms. Preventing acid production reduces incidents of ulcers.