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Is it possible to predict my baby's sex based on their heart rate?
There is a commonly held belief that if you're having a girl,
then the fetal heart rate will be above 140 beats per minute.
This belief might
have started with a grain of truth.
Female fetuses do appear to have faster heart rates than male fetuses during
However, for most of pregnancy there is no relationship between the fetal heart
rate and the sex of the fetus .
Dawes NW , et al.Fetal heart rate patterns in term labor vary with sex, gestational age, epidural analgesia, and fetal weight.Am J
Obstet Gynecol.;180:181-7.PMID: 9914601
McKenna DS et al., Gender-related differences in fetal heart rate during first
trimester.Fetal Diagn Ther 2006;21(1):144-7.PMID: 16354993
Robles de Medina PG, et al., Fetal behaviour does not differ between boys and girls.Early Hum Dev. 2003 ;73(1-2):17-26.PMID: 12932890
Oguch O and Steer P. Gender does not affect fetal heart rate variation.Br J Obstet Gynaecol.;105(12):1312-4.PMID: 9883924
Genuis S et al.Antenatal fetal heart rate and "maternal intuition" as predictors
of fetal sex.J Reprod Med 1996;41(6):447-9.
Druzin ML, et al.,Relationship of baseline fetal heart rate to gestational age
and fetal sex.Am J Obstet Gynecol. 1986;154(5):1102-3.
Reviewed: Mark Curran, M.D.
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