My puppy has been tested for heartworm twice in eight months. Does he need another test this same year?


I am not quite sure why your puppy was tested twice in eight months, but if you are in an area that is heavily infested with heartworm, like the Mississippi Valley, and you stopped giving preventative for several months, a new test is a good idea. If your dog belonged to me, I would not choose to have another test.

Updated on March 21, 2018

Original Article:

Why Your Dog Does Not Need a Heartworm Test Every Year
By Dr Mark