Spontaneous abortion is the loss of the infant naturally or accidentally, without the will of the mother, more commonly referred to as miscarriage.
Abortion is the removal of the embryo or fetus [5] from the womb [6], before birth can occur—either naturally or by induced labor. Prenatal development occurs in three stages: the zygote [7], or fertilized egg [8]; the embryo, from post-conception [9] to eight weeks; and the fetus [5], from eight weeks after conception [9] until the baby is born. After abortion [10], the infant does not and cannot live. Spontaneous abortion [10] is the loss of the infant naturally or accidentally, without the will of the mother. It is more commonly referred to as miscarriage [11]. Induced abortion [10] is the deliberate removal of a developing infant to end a pregnancy [12].