Through various sources, I have deduced that sexual relations with very young girls is permitted in Islam. What I don't understand is that, this poses health risks to the woman as well as ethical concerns on whether or not it is acceptable for the girl. I realize that it is 'preferred' to consummate a marriage after the woman reaches puberty, but I have found no evidence forcing one to do so. Is there any known reason as to why young girls are not protected in this regard by Islam? It seems very contradicting to the religion. I realize that in the past, the age of consent was low and that older men were usually married to younger women, however, when it poses a health risk and such a blaring ethical concern, why is there no governing law against it in Islam?