Rhagades are fissures, cracks, or linear scars in the skin, especially at the angles of the mouth and nose.
They tend to form at areas of motion.
They can be a result from bacterial infection of skin lesions.
They are one of the late-stage manifestations of congenital syphilis; others are saber shins, Hutchinson teeth, saddle nose, and Clutton's joints (usually knee synovitis).
[1] This cutaneous condition article is a stub.