There are contradictory attitudes toward temporary marriage in Iranian society. The proponents consider it as a means to prevent social degradation and moral corruption while the opponents take it as a pleasure-seeking tool for men in violation of the rights of children and women. This study supports the view that temporary marriage is a back door to sexual exploitation. According to the study’s findings, mut'ah is a practice that lacks redeeming values and positive functions. Rather, it causes harms such as child marriage, the collapse of the family foundation, negative attitudes towards permanent marriage, the promotion of corruption and violations of women’s rights. Many women agree to be subjected to sexual exploitation because they lack economic rights and a sense of security. As an institution, it is not without controversy. In fact, child marriage is partly the result of the tradition of sigheh mahramiat which paves the road for increase of child marriage in Iran. It is performed in some Iranian families when their sons and daughters are in early puberty, or even before then, to supervise the sexual behaviour of children, to prevent them from committing a sin, for fear of girls’ solitude at older ages, to fight against social and cultural pressures related to communication between young girls and boys (which are more obvious in small communities), and to facilitate smoother relations between two families. The religious and traditional stratum of the Iranian society performs sigheh / sigheh mahramiat and continues to follow this tradition. Both the country’s laws and the jurisprudence treat the permanent and temporary marriages the same although they are different in nature and so far temporary marriage has not been addressed as an independent subject. The religious and legal ambiguities surrounding sigheh and temporary marriage and inattention to Iran’s social circumstances lead to grave consequences such as child marriage, school drop-out, violation of women’s rights and in particular physical and emotional vulnerabilities of women and girls. Revision of laws pertaining to sigheh/temporary marriage while considering the social characteristics of the society can serve as a key solution to minimize these negative impacts