In Islam, the basic principle of the interaction between men and women is segregation. This means that in all areas of life and in all places whether private or public, contact between men and women is generally prohibited. Many evidences establish the principle of not mixing between the sexes, and there are many ahadith which clarify that this is the case in both public and private areas:

Abu Daud narrated the following ahadith: The Prophet (saw) said, “The best row for men is the front row, (furthest from the women’s row) and the best row for women is the back row and the worst is the front row (just behind the men).” Ibn ‘Umar said, “The Prophet prohibited men from walking between two women.” The Prophet (saw) saw men and women outside the mosque moving side by side in the crowd. He stopped the women saying, “It is not proper for you to walk in the middle of the path, you had better walk along the walls.”.

This means that the Muslims should avoid contact with members of the opposite sex, whether Muslim or not, as a general rule. However, there are exceptions to this general rule, where the mixing or interaction between men and women is permitted in certain situations.

For example, it is permitted for men and women who are mahram to each other to mix freely for any purpose that Islam permits. As well, there are certain areas where it is permitted for non-mahram men and woman to interact with each other, such as for the purpose of da‘wah (invitation to Islam) or education. However, the type of mixing that can occur here is not free, and is restricted by the Shari‘ah to be within certain guidelines and boundaries, and the Muslim must be sure to understand these before any type of mixing takes place.

The ahkam (rules) to do with mixing also vary with regard to the kind of place in which the mixing occurs.