Reviewed by Dr. Becker

The condition can be congenital or acquired by chronic disease, but either way it can be terrifying to your pet if he suddenly can't breathe. The breeds most at risk, the first signs to look for and the changes that occur as the disease progresses, plus, 5 factors that can trigger symptoms.

Researchers have found that there are very good reasons why many dogs sniff and pee repeatedly on a walk, and it may have little to do with actually relieving themselves. Especially if you own a smaller dog, you'll find these discoveries fascinating.