Men need sex-the more so, they are claimed to be obsessed with sex, thinking every X number of seconds about it. However, this seems to be a big overestimation to say that women are somewhat receptive and men are somewhat pushy to have sex. Our physical urges became indeed equal with the prevalence on women side lately. Why are we used to think that sexual needs are more demanding for men than women? In fact, the situation most men were brought up inclined us to consider men as aggressive animals driven by their wild instincts. If you have sex - you are a man, if you don't- you are loser. If your penis is erect- you are a man, if your willy is not firm and big – it means the end of the world (at least for a man). This really creates an image of an ever-wanting macho aka real man who is always ready, and cannot resist looking at the naked body, becoming absolutely uncontrollable.
But there are a lot of cases when men really don't want sex but are afraid just to admit this fact, as this will be a sign of their failure.
I wouldn't argue that men have quite strong sexual urges but this is not self-evident as they get tired too, can be too concerned with their work and simply find more interesting stuff to do from time to time. Of course, a man is unlikely to claim that recent mood swings do not attune him to sex, however, constant fights with his wife is quite a reason to want physical intimacy no more than once in a month.
A woman who will face a problem that her man doesn't want her that often may come to a conclusion that there is something wrong with her as she "knows that men want" or otherwise he has erectile dysfunction. In fact, male readiness to have sex everywhere and anytime is not a natural but more imposed.
