This work analyses the various arguments put forward by the supporters of female genital mutilation (FGM) under Islamic law to determine whether this practice has its roots in Islam, whether it is a customary or cultural tradition, or whether it is a matter of personal preference in different parts of the Muslim world where the practice exists. The findings of this work are that the arguments given in support of FGM are either not reliable, are weak or, do not order Muslims to carry out this practice. Instead, this horrific practice is rooted in customary-cum-cultural tradition or, is a matter of personal preference for some Muslims but cannot be legitimized under Islamic law.