ABSTRACT
The genital and perianal skin can be affected by many of the dermatoses that characteristically occur at other sites, but some conditions have a predilection for this anatomical region. Difficulties arise in diagnosis as the classical morphology is altered due to the effect of occlusion at these flexural sites. A brief review of the embryology and anatomy of this area is important in understanding the nature and distribution of the dermatoses that do occur.
