Respiratory Disease

There are many respiratory diseases and conditions that produce a severe cough that can lead to retching. One such disease is kennel cough, a highly contagious disease also known as canine infectious tracheobronchitis. Kennel cough can be caused by a number of viruses and bacteria, including the Bordetella bacteria. This airborne disease can be coughed into the air, infecting any other dogs in the area. A dry and unproductive cough and a characteristic “goose honk” can lead to pneumonia, weight loss, and lethargy.

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Collapsing Trachea

The trachea, or windpipe, stretches from the neck to the chest and allows air to flow to the lungs.

Due to a hereditary defect of some breeds, such as Poodles and Pomeranians, the cartilage rings that make up the trachea can weaken and cause a narrowing of the trachea. This can cause severe coughing which can end in gagging and retching.

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Throat Obstruction

Balls, rocks, sticks, tissues, and other non-edible things can become lodged in the esophagus or trachea and cause a blockage. This can lead to gagging, retching, and vomiting. Other signs there is something caught in your dog’s throat might include audible breathing noises, drooling, pawing at the face, and pacing. In some cases, your dog may vomit out the foreign material, but when it is lodged too securely, unproductive dry heaving can result.

Nausea

Nausea can be caused by many things. If your dog has eaten something that has upset his stomach, he may retch and attempt to expel the noxious material. Eating too much food, or too quickly, can also cause your dog to retch. Certain medications may cause nausea, as can infections in the ear. Motion sickness is sometimes seen in dogs, and can result in additional signs of whining, pacing, drooling, and diarrhea.

Bloat

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A case of bloat can occur when a lot of air is swallowed, such as if food is eaten too quickly, and can cause the abdomen to swell. This may be relieved through belching. Gastric dilatation (GD) occurs when the stomach fills with gas, while gastric dilatation with concurrent volvulus (GVD) results in a twisted stomach that can become a life-threatening condition needing immediate medical care. Unproductive retching with a bloated abdomen can be indications of one of these more serious conditions. Other signs can include shallow and rapid breathing, abdominal pain, and restlessness.

Gastrointestinal Issues

Besides bloat, other gastrointestinal complaints can result in retching. Various infections, digestive issues, organ malfunction, tumors, and certain diseases such as gastroenteritis, can cause signs that may include vomiting or retching. An obstruction or impaction in the intestines can cause a disruption in the entire digestive system as food and fluids cannot pass through. All of these kinds of conditions will present additional signs, so be sure to relay any you have noticed in your dog to your veterinarian to help in a diagnosis.

Bilious Vomiting Syndrome

Bile is a yellowish green substance that aids your dog in digestion. When the stomach is empty, there is nothing to absorb the bile and stomach acids, and this can cause nausea and retching. Bilious vomiting syndrome (BVS) occurs when this buildup of bile causes irritation to the stomach lining over a long period of time. Vomiting occurs when the stomach is empty, usually in the morning or late at night, and can produce a frothy yellow vomit. Other signs include lethargy, drooling, decreased appetite, pale gums, and dehydration.

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