A sexually transmitted disease characterized by painful, genital ulcerations. Exposure is usually through sexual intercourse, but accidentally acquired lesions have occurred on the hands. The incubation period is from 3 to 5 days. Chancroid can be transmitted from someone who has no symptoms. It becomes an open running ulceration.
More lesions often develop.
On women, the lesions most commonly appear on the labia, but may appear on the perineum, thigh or cervix. Some women may have no external signs of infection. On men, they appear on the shaft of the penis, the foreskin or the urinary opening. Causes Haemophilus ducreyi , a bacterium. Risk Increases With Multiple sexual partners.