Violence against women is an obstacle to the achievement of the objectives of equality, development and peace. Violence against women both violates and impairs or nullifies the enjoyment by women of their human rights and fundamental freedoms. The long-standing failure to protect and promote those rights and freedoms in the case of violence against women is a matter of concern to all States and should be addressed. Knowledge about its causes and consequences, as well as its incidence and measures to combat it, have been greatly expanded since the Nairobi Conference. In all societies, to a greater or lesser degree, women and girls are subjected to physical, sexual and psychological abuse that cuts across lines of income, class and culture. The low social and economic status of women can be both a cause and a consequence of violence against women.