Each year, people around the world with 205 million pregnancies occur over a third unplanned , and about one in five ends in abortion . Most abortions occur in pregnancy was not planned . Abortion can be done in different ways depending on the gestational age varied according to the size of the embryo or fetus . The right approach will differ according to the popularity of physicians and patients . The limit in each ward , and the law is . Abortion is an indication for treatment and on a voluntary basis . Abortion means to treat abortion as a medical indication for the treatment of life and physical and mental health of the mother . Termination of pregnancy, babies are more vulnerable to illness , disability or premature death Or to reduce the number of fetuses in a twin pregnancy to reduce the risk of illness. The voluntary abortion refers to an abortion without medical indication and according to the wishes of women .