A reader asks, “How do you get heart worms in the human heart?” Naturally, we at All About Worms are not medical professionals of any kind and our statements should in no circumstances be taken to constitute medical advice, but we do believe we possess a set of knowledge items germane to this reader’s concern. The reader asks specifically about those types of worms, if any, which may invade the human heart, a concern which is understandable both because of its obvious consequences for human health and due to the fact that popular accounts of heartworm tend to center on its occurrence in dogs and other animal hosts.