Worm-Shaped Rash on Skin
Worm-shaped rashes on humans can be a symptom of worms in humans. These symptoms are caused by cutaneous larva migrans (also known as creeping eruption), a nematode infection caused by dog or cat hookworms that results in a migrating, worm-like skin lesion. The larvae of these worms are passed through the feces of infected animals. Also, if a person steps on one, the larvae may burrow into the skin and cause an infection. The first symptom of this condition is typically a small, red abscess at the site where the larvae entered the skin.
This abscess may appear to be an insect bite or a scrape and might grow to 8 centimeters long. It usually stays in one place for several weeks before moving across the skin. As it moves, it leaves behind an open trail in its wake, which appears as a red raised area with one or more white lines running across it. The rash frequently leads to itching and discomfort and can accompany flu-like symptoms such as malaise, headache, fever, and myalgia.
A diagnosis of cutaneous larva migrans is made based on the rash appearance along with its location after exposure to an animal with hookworm infection. Treatment includes oral antibiotics, such as doxycycline, to kill any remaining worms in the skin. If left untreated, cutaneous larva migrans can lead to inflammation of the lymph nodes and even eye or brain infections.
