To see a list of groups click here. It has no other purpose. There is no instructions in the Qur'an or in the writings of the Prophet Mohammed which require that the clitoris be surgically modified. Thus God must approve of its presence. And also, it should not be removed or reduced in size or function.
Mutilated genitalia reduces or eliminates a women's pleasure during the act.
There is an estimated 135 million girls and women that have gone through this procedure with an additional 2 million a year at risk. It is now believed that the practice originated in Africa and is a cultural practice. Follow this link to see some indicators supporting this conclusion. Amnesty International now has taken up the fight to do away with this practice that mutilates millions of girls each year. Today FGM is seen as a human rights issue and is recognized at an international level.