Impotence is the inability to have an erection. The inability to get an erection may occur before penetration, at the time of penetration, or during sexual play, when no penetration is planned. An erection cannot be forced. Impotence may be caused by stress, alcohol or drugs, including prescription medications. It can also be caused by physical problems such as multiple sclerosis or neurological damage that interferes with neural control of ejaculation.
Impotence associated with physical ailments is relatively infrequent.
Premature ejaculation usually refers to ejaculation either before intended penetration or soon after penetration, before ejaculation is desired. Premature ejaculation is common in young men and greater control usually develops with age. Often it is a result of high sexual excitation or a long length of time since your last ejaculation. If you are experiencing problems with impotence or premature ejaculation, seek advice from a medical provider or other men's health specialist. What Men Can Do Become more aware of your body.