Delivery is the time when the baby is born is produced by leaving the maternal uterus, where nine months of gestation are met, as a rule, but can occur prematurely. Is considered labor starts when irregular uterine contractions and continuously, which are progressively increased in frequency and intensity appear. Alongside contractions, physiological changes in the cervix that had just causing birth. Pregnant women should be moved to a hospital, where you will receive all pertinent medical attention. In some cases, assistance and control delivery may require the help of anesthetic medications or oxytocin, which is used when there are complications late. The ideal form of labor is when the baby is born vaginally gliding mother spontaneously, without mediation of instruments or complications. But in many cases, assistive devices in childbirth as forceps, holding the baby's head to force him out are required. A lot of deliveries performed by caesarean, a surgical intervention in which an incision in the abdomen and the uterus is done to remove the baby when complications arise during childbirth.