In an Islamic society, there are two types of areas where men and women come into contact with each other, which are quite different in their descriptions and in the ahkam (rules) which relate to them. The nature of the interaction between people in them may involve the mixing among men, among women, and between men and women. These are :

These consist of areas wherein anybody can be present without permission, e.g. the mosque, the streets etc.

These are areas where permission is required to enter them, such as houses. In such areas, it is forbidden to enter without permission, or even to look inside. Sahl ibn Sa’ad narrated, “A man peeped through a round hole into the dwelling place of the Prophet (saw) while he had an iron comb with which he was scratching his head. He (saw) said, ‘Had I known you were looking (through the hole) I would have pierced your eye with it (the comb). Verily, the order of taking permission to enter (a dwelling place) has been enjoined because of that sight (that one should not look unlawfully at the state of others)’. ” Bukhari.

Islam defines rules which regulate relationship between men and women.