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Overview
Chronic bronchitis, inflammation of the airways, can affect any dog, but it is particularly prevalent in smaller breeds. It can be caused by an allergy or by long-term exposure to cigarette smoke or some other type of environmental irritant. Bronchitis is treatable but usually cannot be cured, so the affected dog will need to be medicated for the rest of his life. As bronchitis symptoms can often mimic those of other canine illnesses, it is important to have your dog diagnosed by a veterinarian before beginning treatment.
The Telltale Cough
Constant coughing is the most recognizable symptom of canine bronchitis. The cough will usually get worse when you take your dog for a walk or if she does any energetic playing, and it may be worse at some times of day than others. Sometimes dogs will become so short of breath that you can actually see a bluish tinge to their tongue and gums, though if your dog is a Chow or Chow mix, this blue tinge is likely permanent. Dogs with very severe cases of bronchitis may become so worn out by coughing that it causes them to faint.
Difficulty with Breathing
A dog with bronchitis will often be short of breath and may gasp or wheeze as he struggles to get enough air. He may also breathe very rapid, shallow breaths, a symptom known as tachypnea.
Retching and Gagging
Bronchitis breathing difficulties can also cause dogs to retch and gag. It may sound as if your dog is actually going to vomit, but she is just trying to clear the mucus from her throat.
Loss of Appetite
Dogs with bronchitis often experience a marked decrease in appetite and may lose a significant amount of weight. As sudden weight loss can be symptomatic of any number of serious conditions, however, it is important to have your dog thoroughly examined by your vet to rule out other possible causes.
General Lethargy
Lethargy is another symptom than can result from almost anything that ails your dog. If he is exhibiting other symptoms of bronchitis, particularly the chronic cough, the lethargy may well be due to the constant struggle to breathe, but it is still important to have a complete veterinary exam to eliminate other possibilities. Coughing may also be symptomatic of heartworm, and if that is the diagnosis, you dog will need treatment right away as heartworm, unlike bronchitis, is often fatal.
