There are parasites all over the world that can infect humans. Some of them are easy to avoid, but others are more common than you might think.

You can take certain steps to lower your chances of becoming an unwitting host to one of these nasties. Practicing basic ...

You may have heard an influencer say you’re infected with worms or parasites and then been promised a “cleanse cure.” Our ...

Experts break down how concerned you should be about human cases of infestations — which the CDC describes as "very painful." ...

Accumulating evidence suggests that a common single-celled parasite called Toxoplasma gondii may also be a contributor: An April 2025 study showed for the first time that “human sperm lose their ...

Accumulating evidence suggests that a common single-celled parasite called Toxoplasma gondii may also be a contributor: An April 2025 study showed for the first time that “human sperm lose their heads ...