Dr. Derek Freedman:

One must recognise that declarations of one's sexual history are unreliable. I have no specific data and I am speaking from experience of having seen many patients over a long period. I do not always believe what I am told, but I always screen for the full set of infections to ensure nothing is missed. Many people come to see me who have paid for sex but who would certainly be hesitant to admit it. Most say they picked somebody up at a bar or club, or another place of that nature. I have been to many bars and clubs and certainly never been picked up or received an offer; therefore, one must certainly take what people say with a pinch of salt in any walk of life, particularly when one is taking a sexual history.