<unk>  can be spread by viral shedding prior to and following the formation of ulcers. The risk of spread between a couple is about 7.5% over a year (for unprotected sex). The likelihood of transferring<unk>  from one person to another is decreased by male condom use by 50%, by female condom by 50%, and refraining from sex during an active outbreak. The longer a partner has had the infection, the lower the transmission rate. An infected person may further decrease transmission risks by maintaining a daily dose of antiviral medications. Infection by<unk>  occurs in about 1 in every 1,000 sexual acts.
Genital herpes
Hidradenitis suppurativa
Tinea manuum
Syphilis
Logorrhea 
Chancroid
Molluscum contagiosum
Creatorrhea