1. Lack of Human Rights
Probably the most alarming form of human trafficking is child trafficking. In countries and regions where poverty, unemployment and large families are dominant, it often happens that parents themselves become involved in this crime. This is especially the case in the poor regions of India, for example, where a child is seen rather as a property than a human being with its rights. Lack of human rights is not a problem in India only, of course, but there is more common.
That being said, there were the causes of human trafficking in Africa, India and US that we managed to gather, trying to raise awareness about these heinous crimes that, unfortunately, happen every day around the globe.