Female circumcision or Female Genital Mutilation (FGM) seems to be sanctioned in Islam.
Sahih al-Bukhari 5891 - Narrated Abu Huraira: I heard the Prophet saying. "Five practices are characteristics of the Fitra: circumcision, shaving the pubic hair, cutting the moustaches short, clipping the nails, and depilating the hair of the armpits."
And if you are starting to think that circumcision is only applicable to males, then read the following:
Jami at-Tirmidhi 108 - Aishah narrated: "When the circumcised meets the circumcised, then indeed Ghusl is required. Myself and Allah's Messenger did that, so we performed Ghusl."
Sexual contact is referred to as circumcised part of male meeting circumcised part of female, clearly indicating that circumcision is held to be the norm for both sexes. The traditional schools of Islam - Shafi, Hanbali, Maliki and Hanafi all considered it either as obligatory or as preferred. If you are unaware of the health hazards of female circumcision, all you need is a small research on the internet.
A standing testament to how Islam directly brought in FGM in this world is Indonesia. Before 13th century Islam was not even there and the region had nothing whatsoever to do with female circumcision. Today Indonesia is 87% Muslims. Surveys have found that more than 95% of the Muslim females undergo FGM before the age of 18. If you still think the genital mutilation of females is nothing more than an "African cultural problem", then think again.