The Truth About Heartworm Disease Every Dog Owner Should Know

This week on Dr. Molly Says, it’s just me… and we’re talking about one of the most important diseases in veterinary medicine that somehow still manages to be one of the most misunderstood: heartworm disease. I know, I know… heartworms aren't exactly the sexiest podcast topic BUT if you've ever wondered, "Does my indoor dog really need heartworm prevention?" or "Is heartworm prevention actually safe?" or "Can't I just skip it during the winter?"… we're answering all of it.We start with Heartworm 101 (don't worry, I'll make parasites as fun as they can possibly be 🤝). We talk about how dogs actually get heartworms, why mosquitoes are the real villains here, and how these parasites somehow manage to make their way from one tiny mosquito bite all the way into your dog's heart and lungs. (Nature is... honestly kind of terrifying.)Then we get into the questions I hear every single day in practice.How heartworm disease actually developsWhy your dog can have heartworms for MONTHS before showing any symptomsThe scary complications veterinarians worry about (including caval syndrome)What heartworm treatment actually looks like... and why we'd all rather prevent it than treat itHow heartworm preventatives actually work (because they don't work the way most people think they do)Whether indoor dogs really need heartworm medication (spoiler: yes 😅)If you've ever had questions about heartworm prevention (or you've seen one too many TikToks trying to convince you it's more dangerous than heartworm itself) this episode is for you.LOVE YOU GUYS 💛Timestamps:00:00 Welcome back! Why we're talking about heartworm disease01:20 What heartworm actually is03:58 How mosquitoes transmit heartworm07:18 The heartworm life cycle explained11:10 What heartworms do inside the body15:57 Early signs of heartworm disease17:34 Right-sided heart failure & caval syndrome20:13 Wolbachia bacteria & why it matters for treatment22:30 How veterinarians diagnose heartworm disease25:45 Heartworm treatment explained30:39 Why treatment is expensive (and dangerous)31:39 Heartworm prevention myths debunked32:28 How heartworm preventatives actually work34:24 Ivermectin, resistance & prevention options36:30 Why year-round prevention matters37:43 Why your vet recommends annual heartworm testing38:31 Indoor dogs still need prevention39:20 LOVE YOU GUYS 💛---------------------------------------------------------------Listen to the pod on YouTube/Spotify/Apple:https://www.youtube.com/@drmollysayspod https://open.spotify.com/show/7xmKqrXGPJXpsbDbtCMgfe?si=17148ddc74604cb1 https://podcasts.apple.com/us/podcast/the-dr-molly-says-podcast/id1800302028---------------------------------------------------------------Follow Dr. Molly:Instagram | https://www.instagram.com/drmollysaysTikTok | https://www.tiktok.com/@drmollysaysFollow the podcast:Instagram | https://www.instagram.com/drmollysayspod/TikTok | https://www.tiktok.com/@drmollysayspod---------------------------------------------------------------