Think twice about hooking up: STD rates are at an all-time high. Worse, the latest STD making the rounds could literally make your genitals rot off. Donovanosis, also known as granuloma inguinale, is a sexually transmitted infection that turns a person’s genitals into flesh-eating ulcers. It can also infect the mouth, nose, and chest.

The disease has typically been reported in warm, humid regions including India, southern Africa, central Australia, and the Caribbean, but cases have also appeared in cooler climates. The CDC records about 100 cases in the U.S. each year. This summer, the U.K. saw a rash of cases as well.