Endoparasites are organisms that live inside the bodies of their hosts, often causing harm. These parasites can be found in various forms, such as worms, protozoa, and bacteria. They rely on their hosts for nutrients and a suitable environment to grow and reproduce, which can lead to health issues for the host, including malnutrition and disease. Common examples of endoparasites include tapeworms and roundworms, which can infect animals and humans alike. Infections can occur through contaminated food, water, or direct contact with infected individuals. Understanding endoparasites is crucial for preventing and treating infections, ensuring better health for both humans and animals.