Care delivery is one aspect of concern to society and all who are dedicated to obstetrical practice. To improve the care assistance has been promoted different directions in recent years throughout the Spanish territory attendance natural normal delivery. Different care institutions and professionals have undergone the same transformation to meet the new demands. Respect to the physiology and respectful care are the foundation of good obstetric care. Meet delivery practices in our country in the last century, help us to understand why this claim, returning to nature after an excessive intervention in many cases encouraged by the interest in improving maternal and perinatal outcomes.