Physiological labor begins spontaneously, low-risk at the beginning and throughout its duration until delivery. The baby was born spontaneously in the vertex position between 37 and 42 weeks of pregnancy with birth weight between the 10th and 90th percentile for age and gender. The physiological birth to a child born dorzoanteriornimokcipitalnim attitude. Childbirth is divided into four birth stages. The beginning of labour indicates contractions or water breaking.Newt may burst independently or during contractions.Arrival at the delivery room the examination is performed by the duty gynecologist, viewing the woman and deciding on how to proceed with the birth. Upon arrival to the delivery room access to toilets genitals and eventual approval for enemas. During childbirth is extremely important to constantly monitor the status of the mother and child. Mothers blood pressure is regularly measured , pulse and frequent rehydration. First patholog starts with the first contractions that lead to the disappearance of the cervix or opening of the estuary, or water rupture .During early labor contractions are rare, weak and short-lived, the cervical canal passable by 2 cm, first patholog ends when the cervix is fully open 10cm . Second stage of labour is the extrusion of the child. It starts when the mouth completely entrapped 10 inches and the water breaks.Contractions are more frequent and more powerful than before. These are real and moving labor. Third stage of labour in which physiological conditions takes 30 min to 1 h; begins at the moment of birth of the child and ends with giving birth to the placenta. Fourth stage is the delivery ofthe placenta, and a transitional stage of delivery to the puerperium. It lasts about two hours, and in that time, closing torn blood vessels and slows down the bleeding.