How does helminths move?

Helminths, or parasitic worms, exhibit various modes of movement depending on their type. Some, like flatworms (e.g., tapeworms), are mostly sedentary and rely on muscular contractions to maintain position within their host. Others, such as roundworms, move through a combination of muscle contractions and undulating body movements. Additionally, certain larvae may use cilia or other structures for locomotion in aquatic environments.