Tapeworm Most of the tapeworms that affect humans come from eating undercooked animal products — particularly beef and pork — as well as contaminated fish that's raw or undercooked. Symptoms can be nonexistent: People can live with a tapeworm and not know for months or even years.
Can worms harm your body?
Exploiting their hosts, draining resources, sucking the life out of the body – that's what parasites do, by definition. Indeed, many helminths, including the porcine tapeworm and the human hookworm, are known to cause disease and even death in the human population.
Are earthworms poisonous to humans?
Most worms you'll encounter won't pose any threat to you or your pets. These include earthworms, redworms, nightcrawlers and more.
What worm is most common in humans?
Pinworms are also called “threadworms.” They're the most common type of intestinal worm infection in the U.S., and one of the most common in the world. They're thin and white, and about one-quarter to one-half inch long -- about as long as a staple. Tapeworms are flat worms that look a bit like ribbons.
