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Water birth is childbirth that occurs in water. Proponents believe water birth results in a more relaxed, less painful experience that promotes a midwife-led model of care.〔 Critics argue that the safety of water birth has not been scientifically proven and that a wide range of adverse neonatal outcomes have been documented, including increased mother or child infections and the possibility of infant drowning. A 2009 Cochrane Review of water immersion in the first stages of labor found evidence of fewer epidurals and few adverse effects but insufficient information regarding giving birth in water.〔 Parent, child, and birthing organizations have produced statements both supporting and criticizing water birthing. ==Benefits== It has been widely reported that immersion during the first stage of childbirth reduces the pain of labor. Various theories as to the reason for the reduction of pain include the suggestions that the mother is better able to assume a comfortable position and that the warmth of the water may produce a sedative effect; immersion has been shown to decrease the release of several stress and anxiety related hormones. A 2014 review comparing immersion during the first stage of labor to regional analgesia found that "immersion during the labor is convenient, comfortable, and has no side effects. No anesthesiologist is required, and there is no risk of trauma or the complications of anesthesia. Thus, water immersion during the labor is a relatively ideal method for providing analgesia during labor." Water birth offers perineal support for a birthing mother, which decreases the risk of tearing and reduces the use of episiotomy. A Cochrane Review found that immersion during the first stage of childbirth reduces the use of epidurals, though it could not reach any other conclusions for other stages of labor or other outcomes and did not have enough information to make any conclusions on full water birth. It did not find evidence of increased adverse effects for immersion during the first stages of labor. A 2014 review reported that it has been found that water immersion during the first stage of labor can reduce the length of the first stage, reduce labor pain, and the use of epidural/spinal analgesia. It is also associated with a lower rate of cesarean delivery and stress urinary incontinence symptoms 42 days after delivery. The review reported that immersion during labor did not appear to increase the rate of infections for the mother or the baby, and APGAR scores for the baby were similar to that of conventional births. 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Water birth」の詳細全文を読む スポンサード リンク
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