Chancroid lesion haemophilus ducreyi PHIL 3728 lores.jpg
A chancroid lesion on penis
SpecialtyInfectious disease Edit this on Wikidata

Chancroid (d/ SHANG-kroyd) (also known as soft chancre[1] and ulcus molle[2]) is a bacterial sexually transmitted infection characterized by painful sores on the genitalia. Chancroid is known to spread from one individual to another solely through sexual contact. While uncommon in the western world, it is the most common cause of genital ulceration worldwide.

Signs and symptoms

Buboes in a male

These are only local and no systemic manifestations are present.[3] The ulcer characteristically:

  • Ranges in size dramatically from 3 to 50 mm (1/8 inch to two inches) across
  • Is painful
  • Has sharply defined, undermined borders
  • Has irregular or ragged borders
  • Has a base that is covered with a gray or yellowish-gray material
  • Has a base that bleeds easily if traumatized or scraped
  • painful swollen lymph nodes occurs in 30 to 60% of patients.
  • dysuria (pain with urination) and dyspareunia (pain with intercourse) in females

About half of infected men have only a single ulcer. Women frequently have four or more ulcers, with fewer symptoms.

The initial ulcer may be mistaken as a "hard" chancre, the typical sore of primary syphilis, as opposed to the "soft chancre" of chancroid.

Approximately one-third of the infected individuals will develop enlargements of the inguinal lymph nodes, the nodes located in the fold between the leg and the lower abdomen.

Half of those who develop swelling of the inguinal lymph nodes will progress to a point where the nodes rupture through the skin, producing draining abscesses. The swollen lymph nodes and abscesses are often referred to as buboes.



Other Languages
العربية: قريح
čeština: Měkký vřed
Deutsch: Ulcus molle
ދިވެހިބަސް: ޝެންކްރޮއިޑް
español: Chancroide
Esperanto: Ŝankroido
فارسی: شانکروئید
français: Chancre mou
Gaeilge: Cancróid
한국어: 연성하감
Bahasa Indonesia: Syankroid
italiano: Ulcera venerea
עברית: שנקרואיד
Latina: Ulcus molle
Nederlands: Ulcus molle
日本語: 軟性下疳
português: Cancro mole
русский: Мягкий шанкр
српски / srpski: Меки чир
svenska: Mjuk schanker
Tagalog: Kankroid
Türkçe: Şankroid
українська: М'який шанкр
中文: 軟性下疳