Helminths are a group of parasitic worms that can infect various hosts, including humans. They are classified into three main groups: nematodes (roundworms), cestodes (tapeworms), and trematodes (flukes). These organisms can cause a range of health issues, from mild discomfort to severe diseases, depending on the type and extent of the infection. Infections with helminths are often acquired through contaminated food, water, or soil. Prevention strategies include proper sanitation, hygiene practices, and cooking food thoroughly. Understanding helminths is crucial for public health, especially in regions where these parasites are prevalent.