I wonder about this all the time.
My one vet says no it is not required if you keep them on a heartworm preventative all year round.
But my other vet says yes you should have them tested every year even if they are getting heartworm medicine year round.
I am really confused on what to do. Peppi has been on heartworm medicine her whole life, 9 years. I test her every year and every year the test comes back negative. So I am wondering if I am wasting my money? The heartworm medicine must be doing a good enough job to keep her free from them for 9 years.
I could see if they lived outside or stayed outside for long periods of time but they don't. |