Hookworm infection is caused by roundworms. The disease affects the small intestine and lungs. Hookworms are parasites that live in the intestines of infected people. Hookworm eggs called larvae spread in the feces or poop of people with hookworm disease. Many people have no symptoms, but signs of a hookworm infection include fever, skin rash, stomach pain, and diarrhea.
You might not have any symptoms of hookworm infection if you’re otherwise healthy, have a low parasite burden, and eat foods with plenty of iron. In general, symptoms of an infestation usually begin with itchiness and a small rash caused by an allergic reaction in the area where the larvae entered your skin. Hookworms usually cause diarrhea as they grow in your intestines.
Other symptoms include:
There are two major types of hookworms that cause hookworm infection. It includes Necator americanus and Ancylostoma duodenale. The eggs of these hookworms end up on the ground after passing through human feces. They hatch into larvae, which stay in the soil until they have a chance to break through human skin.
After infected larvae enter through your skin, they travel through your body:
Your health care provider will test a sample of your poop if you have symptoms of hookworm disease. They analyze the stool sample under a microscope to look for hookworm eggs.
If you have recently traveled to an area where hookworm is common, your health care provider may recommend blood tests. A complete blood count can show eosinophilia. This sign of hookworm disease can show up weeks before eggs are present in your stool.
If tests show that you have hookworm infection, your health care provider will prescribe medications that treat the infection.
Hookworm infections treatment options may include: