Chancroid

Background

Caused by Haemophilus ducreyi
Sexually transmitted
Rare in western countries (leads to frequent misdiagnosis in these locations)

Chancroid (male)

Chancroid (female)

Clinical Features

Incubation period 3-7 days[1]
Lesions begin as soft chancre/papule → painful ulceration with ragged margins[1]
Within days to weeks, unilateral painful inguinal lymphadenopathy (buboes) forms
- These may become abscessed and rupture

Differential Diagnosis

Ulcerative STDs

Evaluation

Generally clinical diagnosis
PCR can be used for indeterminate cases[1]

Management

Clean area with soap and water
I&D any fluctuant buboes
Treat for other STDs as well
Antibiotics[1]:
- Azithromycin 1g PO x1 OR
- Ceftriaxone 250mg IM x1 OR
- Erythromycin 500mg PO QID x7 days OR
- Ciprofloxacin 500mg PO BID x3 days

Disposition

Discharge

See Also

Ulcerative STDs

References

Basta-Juzbašić A, Čeović R. Chancroid, lymphogranuloma venereum, granuloma inguinale, genital herpes simplex infection, and molluscum contagiosum. Clin Dermatol. 2014 Mar-Apr;32(2):290-8. doi: 10.1016/j.clindermatol.2013.08.013.

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