This article concerns how a man differs from women, or is conventionally expected to.
For other meanings of man, Man, or MAN, see Man (disambiguation).'

A man is an adult, male human. The irregular plural is men.


In terms of sex, men have various sexual characteristics that differentiate them from women. In men, the sex organs are involved in the reproductive system, whereas the secondary sex characteristics are involved in attracting a mate or in defeating rivals. Men have mainly external sex organs. The study of male reproduction and associated organs is called andrology.

In general, men suffer from the same illnesses as women, however there are some sex-related illnesses that occur only or more frequently in men.

Gender Roles

In terms of gender, men differ from women by a variety of behaviours.