Jump to: navigation, search
Penis syphilis.png
Chancres on the penis due to a primary syphilitic infection

WikiDoc Resources for Chancre


Most recent articles on Chancre

Most cited articles on Chancre

Review articles on Chancre

Articles on Chancre in N Eng J Med, Lancet, BMJ


Powerpoint slides on Chancre

Images of Chancre

Photos of Chancre

Podcasts & MP3s on Chancre

Videos on Chancre

Evidence Based Medicine

Cochrane Collaboration on Chancre

Bandolier on Chancre

TRIP on Chancre

Clinical Trials

Ongoing Trials on Chancre at Clinical

Trial results on Chancre

Clinical Trials on Chancre at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Chancre

NICE Guidance on Chancre


FDA on Chancre

CDC on Chancre


Books on Chancre


Chancre in the news

Be alerted to news on Chancre

News trends on Chancre


Blogs on Chancre


Definitions of Chancre

Patient Resources / Community

Patient resources on Chancre

Discussion groups on Chancre

Patient Handouts on Chancre

Directions to Hospitals Treating Chancre

Risk calculators and risk factors for Chancre

Healthcare Provider Resources

Symptoms of Chancre

Causes & Risk Factors for Chancre

Diagnostic studies for Chancre

Treatment of Chancre

Continuing Medical Education (CME)

CME Programs on Chancre


Chancre en Espanol

Chancre en Francais


Chancre in the Marketplace

Patents on Chancre

Experimental / Informatics

List of terms related to Chancre

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

A chancre is a painless ulceration formed during the primary stage of syphilis. This infectious lesion forms approximately 21 days after the initial exposure to Treponema pallidum, the gram-negative spirochaete bacterium yielding syphilis. Chancres transmit the sexually transmissible disease of syphilis through direct physical contact. These ulcers usually form on or around the anus, mouth, penis, and vagina. Chancres may diminish between three to six weeks without the application of medication. [1] [2]

In addition, chancres are associated with the sleeping sickness, African trypanosomiasis, subsequent to the bite of a tsetse fly.

Pathological Findings


  1. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:77 ISBN 1591032016
  2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:68 ISBN 140510368X