This forum is for questions and support regarding STD issues such as:
Chlamydia, Crabs (pubic lice scabies),
Gonorrhea, Hepatitis (viral),
Herpes, HPV, Molluscum Contagiosum, PID, Rectal Infections, Syphilis, Trichomonas, Warts,
Yeast Infection
Please note, this forum does not cover AIDS/HIV issues.
1. If you friend is so worried about this, he should not have casual sex. He cannot take the implications of it mentally.
2. He should be more cautious and get to know his partner, her STD status, and his STD status before having sexual relations. If it really bothers him this much...handle it before you have sex. Don't worry afterwards.
Ask him to read this forum a bit. He will find that the worst illness that he can get from this sort of contact is the mental anguish.