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Colic
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Colic is a term used to describe pain in the abdomen. Severe colic can cause a horse to act violently. Milder symptoms can include the horse standing up and laying down frequently or just laying down more often. The horse may also stand stretched out or even stand like it is going to urinate without actually urinating. The horse may do a lot of rolling. It might turn its head toward its flank or repeatedly curl its upper lip. It also could paw at the ground a lot.
Diarrhea
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Frequent or extended diarrhea can be a cause of equine ulcers as well as a symptom, but either way diarrhea should be a concern. It is important to make sure there is nothing in the horse's feed or anywhere else in its environment that could cause diarrhea so that a proper diagnosis can be done.
Temperament
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Any changes in the horse's normal temperament should be a cause for concern. The most common symptoms for equine ulcers that are reflected in the horse's temperament include irritability or sourness, dullness, and reluctance to work.
Body Condition
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Poor body condition is also a symptom of equine ulcers. This can include loss of weight or poor performance, especially for a racehorse. A loss of appetite caused by abdominal pain can lead to the weight loss. Even the condition of the horse's coat can be a clue that it is not feeling well.
Foals
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Foals also can suffer from ulcers. They will have similar symptoms as horses. Other symptoms to look for can include sucking half-heartedly when nursing, grinding their teeth, and frequently chewing on straw.
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Equine Ulcer Symptoms
Equine ulcers are ulcers that form in horses. Ulcers are breaks or holes in the lining of the stomach or intestines. A horse's stomach has upper and lower sections. The upper section does not have glands that secrete acid and is not designed to be exposed to excessive amounts of acid. Ulcers often form in this area when acid builds up in the lower part of the stomach. Here are some symptoms to look for if you suspect equine ulcers.