What causes a dog to wheeze?

Answer:
Wheezing in dogs can be an indication of a serious heart problem. There are many things that can cause heart problems in a dog, a common one could be heartworms. If your dog is wheezing please seek medical treatment immediatly.
First answer by Rumba. Last edit by Rumba. Contributor trust: 229 [recommend contributor recommended]. Question popularity: 1 [recommend question].