That is one of the major causes of world-wide migration. The consequences of this exploitation affect both men and women. Women, however, have less hope than men of finding paid work in another country, or on another continent. They are less mobile, because usually they are required to care for families. When they do flee, it's usually to a neighbouring region or to a bordering nation, where they vegetate in a refugee camp, or they try to survive in the slums of the big cities.
Many women have no other option but to become prostitutes.
Often they have to cater to white sex-tourists. In the last few years, more women have reached the rich metropoles from the Three Continents and Eastern Europe. Here they find a patriarchal society which treats them as a mere appendage to a man with no individual rights, and a sexist climate which forces them to prostitute their bodies and minds to the sexist interests of white men. As wives, they are not entitled to their own guaranteed, individual right to asylum. Very few men and women have the good luck to make it to the rich nations of the North.