Sildenafil (Viagra) is a medicine that doctors prescribe to help men who have erectile dysfunction have sex. Erectile dysfunction is the inability of the penis to become rigid (hard), or to stay rigid long enough to finish having sex. Sildenafil helps maintain an erection.

Giardiasis is an illness caused by an Intestinal parasite called Giardia lamblia. It is a protozoal parasite. It is also commonly called as Traveler's diarrhoea. Giardiasis is common both in developed and developing countries where the water is contaminated with waste and sewage. It is said that one who goes on hiking, travel and drink water from streams and lakes usually get this illness.

An overwhelmingly large number of men are concerned about the size of their penis even though what they have is more than enough for them to be great in bed. When it comes to size of the penis, The Bigger the Better is the popular belief. At times, this obsession with size can come in the way of sexual performance. Here we discuss the issue of penis size from the medical standpoint and clear some misconceptions about penile size.

Masturbation is a common practice that remains shrouded in myths and misconceptions. The popular belief is that only men masturbate but the fact is that masturbation is practiced both by men and women and in all age groups. Here we are listing the common masturbation myths and related scientific facts.

An erection problem is the inability to get or maintain an erection that is firm enough for a man to have intercourse. You may be unable to get an erection at all, or you may lose the erection during intercourse before you are ready. If the condition persists, the medical term is erectile dysfunction. Erection problems are common in adult men and almost all men are affected by it sometime or the other. Any difficulty in having or keeping an erection more than 25% of the time, it is considered a problem.