Chancre

Primary syphilisis manifested after an incubation period of 10-90 days (average 21 days) after exposure with a primary sore. The sore, called a chancre, is localized at the point of initial exposure to the bacterium, often on the penis, vaginaor rectum.

Can also be due to the disease Sleeping sickness/ African trypanosomiasisat the bite of a tsetsefly

Chancre or Chancres can be seen in more detail under the syphillis link. http://en.wikipedia.org/wiki/Syphillis And can also be differentiated between the painfull chancre or chancroid from another STD Haemophilus ducreyi and visible here http://en.wikipedia.org/wiki/Chancroid

This article is licensed under the GNU Free Documentation License.
It uses material from the http://en.wikipedia.org/wiki/Chancre Wikipedia article Chancre.