Helminthic infections are caused by parasitic worms, known as helminths, which can infect humans and animals. These worms include types such as roundworms, tapeworms, and flukes. They often enter the body through contaminated food, water, or soil, leading to various health issues, including malnutrition and gastrointestinal problems. Symptoms of helminthic infections can vary widely, ranging from mild discomfort to severe illness. Common signs include abdominal pain, diarrhea, and fatigue. Diagnosis typically involves stool tests or blood tests, and treatment usually consists of antiparasitic medications to eliminate the worms from the body.