怀孕期间恶心是好征兆吗？
回答 Mary Marnach, M.D.
孕早期恶心（也叫孕吐）可能是一个好征兆。研究表明，对于孕早期有恶心和呕吐症状的孕妇，其流产风险低于没有此类症状的孕妇。
具体有何关联？孕早期恶心和呕吐可能表明您身体内健康孕期所需的激素正在升高。
研究表明，孕期恶心和呕吐可能是由于胎盘产生人绒毛膜促性腺激素（HCG）所导致。受精卵附着在子宫内膜后不久，孕妇身体就开始产生 HCG。有严重孕吐（妊娠剧吐）的孕妇会其他孕妇的 HCG 水平更高。怀双胞胎或多胞胎的孕妇也会有更高的 HCG 水平，更可能出现孕吐。同样地，雌激素是另一种在孕期增加的激素，与怀孕期间恶心和呕吐的严重程度有关。
然而，高怀孕激素水平并不总是与恶心和呕吐相关。
孕期恶心和呕吐也有可能是胎盘组织生长发育的迹象。
不过，请记住，孕期没有恶心和呕吐并不值得担心。一些孕期健康的女性不会经历孕吐。
显示参考文献
- American College of Obstetricians and Gynecologists. Committee on Obstetric Practice. ACOG Practice Bulletin No. 189: Nausea and Vomiting of Pregnancy. Obstetrics & Gynecology. 2018;131:e15.
- Smith JA, et al. Nausea and vomiting of pregnancy: Treatment and outcome. https://www.uptodate.com/contents/search. Accessed Oct. 1, 2021.
- American College of Obstetricians and Gynecologists. Months 1 and 2. In: Your Pregnancy and Childbirth Month to Month. Kindle edition. 7th ed. American College of Obstetricians and Gynecologists; 2021. Accessed Oct. 1, 2021.
- Smith JA, et al. Nausea and vomiting of pregnancy: Clinical findings and evaluation. https://www.uptodate.com/contents/search. Accessed Oct. 1, 2021.
Original article: https://www.mayoclinic.org/zh-hans/healthy-lifestyle/pregnancy-week-by-week/expert-answers/nausea-during-pregnancy/faq-20057917