Tagged: symptoms of heartworm

Ask Seth: Heartworm in Dogs

My vet prescribes heartworm preventative for my dog Sherri every year. We have never had a problem with heartworms and are considering not getting the medication this year. She spends most of her time indoors and I think she would be fine without it. Is heartworm preventative necessary for Sherri? If she gets heartworm, is it that serious?