A man went to the doctor complaining of a swollen foot, only to find out he had a parasitic worm living inside his ankle, and that it had most likely been there for years. The X-ray found two pieces of "guinea worm," parasites that can grow up to one meter long. The parasite infects people when they drink water infected with the larva. Female worms usually start in the abdomen and move to the legs and feet before they exit through the skin.

The pain caused by the parasite often causes people to try to sooth it with water, but if female worms come into contact with water, they will release the larvae, which sets off a whole new cycle of life for the parasites. In a word, "Ew."