Dogs can be struck with many diseases that affect the small intestines. Some of the conditions can come from parasites while others are ingested. Unfortunately, it is difficult to keep dogs from eating things they should not. Keeping a close eye on the things they get into and tallying foreign objects they may eat is important.
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Enteritis
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According to the Pet Education website, the inflammation or infection of the small intestines is called enteritis. The most common symptom of small intestine disease is diarrhea with a foul odor. It can also be green and depending on the damage done to the small intestines can have blood mixed in the stool. Most bouts of enteritis do not need treatment and will pass within a few days. However, if the dog experiences severe diarrhea, dehydration is a concern and a veterinarian should be sought.
Parvovirus
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A deadly and highly contagious intestinal disease contracted by eating feces is parvovirus, normally referred to as parvo. This disease targets the small and large intestines and destroys it. According to the American Veterinary Medical Association, once the walls of the intestines have been destroyed, fecal matter will seep into the dog's bloodstream. Dogs that contract parvo may experience fever, vomiting and severe diarrhea, which causes rapid dehydration. Once the symptoms show, the dog usually dies within 48 to 72 hours. It is very important for a dog owner to get their pet vaccinated.
Coccidia
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Parasites are a common problem with a dog's intestinal tract. Coccidia are small protozoa that target the small intestines. According to the Pet Wellbeing website, this can cause the dog to run a fever, have bloody diarrhea and vomit. Coccidia are treated with oral medication prescribed by a veterinarian. Coccidia need to be treated immediately because it can lead to death because of severe dehydration.
Intestinal Lymphangiectasia
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According to Wendy Brooks, educational director with Veterinary Partner, intestinal lymphangiectasia is an inflammation of the intestinal tract that puts pressure on the lymph vessels and constricts the lymph flow through the dog's body. The weakened flow causes the nutritional fats not to be absorbed and distributed as needed for the dog to stay healthy. The dog will lose weight and may vomit and have diarrhea. The disease is commonly treated with steroids. The Yorkshire terrier is predisposed to this intestinal disease.
Blockage
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Small intestine blockage can occur for a variety of reasons: ingestion of a foreign body, tumors or the intestines twisting together. According to Pet MD, an electrolyte imbalance and dehydration can occur from an obstruction. Also, if the lining of the small intestine and bowel is damaged, fecal matter can get into the bloodstream. An obstruction can only be fixed by surgery.
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