Una cesárea es un tipo de parto en el cual se realiza una incisión quirúrgica en el abdomen (laparotomía) y el útero de la madre para extraer uno o más bebés. Suele practicarse cuando un parto vaginal podría conducir a complicaciones médicas. No se debe confundir con la episiotomía, que es una incisión en el periné para facilitar el parto. La cesárea se hace por encima de la pelvis.

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Caesarean section, also known as C-section, is the use of surgery to deliver one or more babies. A Caesarean section is often performed when a vaginal delivery would put the baby or mother at risk. This may include obstructed labour, twin pregnancy, high blood pressure in the mother, breech birth, problems with the placenta, umbilical cord or shape of the pelvis, and previous C-section. A trial of vaginal birth in some of these situations, including after C-section, may be possible. Some C-sections are also performed upon request. The World Health Organization recommends that they should be done based on medical need and in many cases they are lifesaving for the mother and baby. A C-section typically takes 45 minutes to an hour. It may be done with a spinal block such that the woman is awake or under general anesthesia. A urinary catheter is used to drain the bladder and the skin of the abdomen is then sterilized. An incisions of about 15 cm (6 inches) is then typically made through the mother's lower abdomen. The uterus is then opened with a second incision and the baby delivered. The incisions are then stitched closed. A woman can typically begin breastfeeding as soon as she is awake and out of the operating room. Often a number of days are required in hospital to recover sufficiently to go home. C-sections result in a small overall increase in poor outcomes in low risk pregnancies. They also typically take longer to heal from, about six weeks, than vaginal birth. The increased risks include breathing problems in the baby and amniotic fluid embolism and postpartum bleeding in the mother. Established guidelines recommend that caesarean sections not be used before 39 weeks of pregnancy without a medical reason. The method of delivery does not appear to have an effect on subsequent sexual function. In 2012, about 23 million C-sections were done globally. The international healthcare community has previously considered the rate of 10% and 15% to be ideal for caesarean sections. Some evidence finds a higher rate of 19% may result in better outcomes. More than 45 countries globally have C-section rates less than 7.5% while more than 50 have rates greater than 27%. There are efforts to both improve access to and reduce the use of C-section. In the United States about 33% of deliveries are by C-section. The surgery has been performed at least as far back as 715 BC following the death of the mother with the occasional baby surviving. Descriptions of mothers surviving date back to the 1500s. With the introduction of antiseptics and anesthetics in the 1800s survival of both the mother and baby became common.

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