Chancroid

Chancroid
Other namesSoft chancre and Ulcus molle
Chancroid stained with gentian violet
SpecialtyInfectious diseases, dermatology 

Chancroid (/ˈʃæŋkrɔɪd/ SHANG-kroyd) is a bacterial sexually transmitted infection characterized by painful sores on the genitalia. Chancroid is a bacterial infection caused by the fastidious Gram-negative streptobacillus Haemophilus ducreyi. Chancroid is known to spread from one individual to another solely through sexual contact. However, there have been reports of accidental infection through the hand.