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便秘是孕妇常有的症状,一般发生在妊娠中期以后,原因可能有以下几方面:一是从生理上说,妊娠期由于胎盘产生大量孕激素,使胃肠道平滑肌张力减低、活动减弱,胃酸较少,使整个胃肠道蠕动功能下降。日益增大的子宫体对肠道的机械性压迫也影响了胃肠的蠕动功能。二是由于孕妇自感身体不便,卧床休息增多,缺乏户外活动。三是部分孕妇因腹胀不适,有意减少饮水量,使体液量减少。如果平时就有习惯性便秘,孕期可能加重。
Constipation is a common symptom of pregnant women, usually occurs after the second trimester, the reasons may have the following aspects: First, from a physiological point of view, pregnancy due to the large number of progesterone placenta, gastrointestinal smooth muscle tension decreased, activity decreased, gastric acid Less, so that the entire gastrointestinal motility decreased. Increasing uterine mechanical pressure on the gut also affects gastrointestinal motility. Second, pregnant women feel physically inconvenience, increased bed rest, the lack of outdoor activities. Third, part of pregnant women due to abdominal discomfort, intends to reduce the amount of water, so that the amount of body fluid to reduce. If you usually have habitual constipation, pregnancy may be aggravated.