Prevention.  Unprotected anal sex poses significant health risk for women.
D000293:Adolescent; D000328:Adult; D001003:Anal Canal; D003075:Coitus; D005260:Female; D006801:Humans; D008875:Middle Aged; D012307:Risk Factors; D012747:Sexual Partners; D012749:Sexually Transmitted Diseases / Q000635:transmission*; D047568:Unsafe Sex