Sexually transmitted diseases of the anus and rectum.
D001004:Anus Diseases / Q000382:microbiology / Q000635:transmission*; D005260:Female; D005832:Genital Diseases, Male / Q000635:transmission; D005836:Genitalia, Female / Q000382:microbiology; D006069:Gonorrhea / Q000635:transmission; D006561:Herpes Simplex / Q000635:transmission; D006716:Homosexuality; D006801:Humans; D008297:Male; D009344:Neisseria gonorrhoeae / Q000302:isolation & purification; D011349:Proctitis / Q000382:microbiology; D012002:Rectal Diseases / Q000635:transmission*; D012725:Sexual Behavior; D013591:Syphilis, Cutaneous / Q000635:transmission; D014210:Treponema pallidum / Q000302:isolation & purification