infections
Chancroid
Introduction
Chancroid is a sexually transmitted infection caused by the bacteriaHaemophilus ducreyi, which causes painful genital sores. Chancroid is a sexually transmitted infection (STI) that is rare in the United States and other high-resource countries, occurring primarily in low-resource countries in occasional, local epidemics. Chancroid is a common cause of genital ulcers in areas of Asia, Africa, and the Caribbean. People who have chancroid (or other STIs that cause genital sores) are more likely to become infected with and to spread the Human Immunodeficiency Virus (HIV) Infection (HIV). (See also Overview of Sexually Transmitted Infections (STIs) ) 