1) It seems that I can't maintain an erection for more than a couple of minutes during intercourse. In fact, sometimes it doesn't seem to want to get up and play at all. The girlfriend is really starting to take this personally, but I know it's not her fault. Help! Are there any vitamins, diets, etc. that may help?

2) To put it very simply, I am having trouble having erections for a while now. I used to be able to. I can't have them at all, during intimate encounters or during masturbation. I get a little "hard" but cannot get completely hard. Could you please help me? Thank you!!

I have a latex sensitivity, but would like to perform safer oral sex. Are lubricants on non-latex condoms harmful if ingested? I can't seem to find non-latex, non-lubricated condoms anywhere.

I have been on the Nuvaring for three months now, and I am keeping it in for the four weeks then changing it because my doctor said there's no need for me to have a period. About two weeks ago I started having dark brown discharge and it has gotten more heavy, but only when I run or stand up real quick. Is this normal or should I call my doctor and find out what is going on?

My roommate and I were wondering whether or not there was a difference in sleeping with a man with an uncircumcised penis or one that has been cut? My roommate's current boyfriend is uncircumcised and she has heard horror stories about sleeping with men that have uncircumcised penises.

I live in Prague, Czech Republic — Europe. Before asking any question, I should tell you that I really appreciate your service. As for my question, I would like to ask you about the most common reasons for condom failure as a contraceptive method. I suppose that the most frequent one is condom breakage. But what are the others? I am especially concerned about pregnancy risk implied by the accidental transfer of sperm in pre-cum to condom by fingers while putting it on.

PLEASE, PLEASE, PLEASE answer this question for me. Are condoms you buy from machines in the bathroom safe? What I mean is, could they carry some sort of disease or STD or anything that can make me sick (I don't mean allergies)? And also, could you tell me if American condoms are better than other countries' condoms? I read that U.S. condoms are electronically tested for defects or diseases, but I was wondering if other countries like Europe or Thailand or whatever tested their condoms, too. If I was older, I would buy condoms from boxes, but until then, I am stuck buying them from bathroom machines.

My friend had to have both of his testicles removed because of Testicular Torsion... will he be able to get an erection now?? What are the testicles for, anyway??