Fetal heart rate refers to the frequency of the fetal heartbeat and is often used to assess the health of the fetus. However, there is a way to determine the gender of the fetus through fetal heart rate. This statement is widely circulated on the Internet, but its scientific nature and accuracy are somewhat controversial. First of all, the fetal heart rate is controlled independently by the fetal heart, which is affected by many factors, such as gestational age, fetal position, maternal position, maternal psychological state, etc. Therefore, fetal heart rate will vary at different gestational ages, at different times, and under different conditions. At the same time, the heart rate changes of male and female fetuses are also different, but the difference in heart rate of fetuses of different genders is not very significant. Secondly, the statement that fetal heart rate predicts fetal gender lacks scientific basis. Although some people claim that a fetus with a fetal heart rate higher than 140 beats/minute is a female, and a fetus with a fetal heart rate lower than 140 beats/minute is a male, this statement has not been recognized by the medical community. In fact, the gender of the fetus is determined by its genetic material and is not necessarily related to the fetal heart rate. Finally, the accuracy of fetal heart rate prediction of fetal gender is difficult to guarantee. Fetal heart rate is affected by many factors, such as maternal position, fetal position, gestational age, etc. Its changes are unstable and have certain limitations. Therefore, the accuracy of predicting fetal gender based on fetal heart rate is not high. [The most comprehensive and best sound quality in history] 32 sets of 100 must-listen late-pregnancy music for prenatal education for free. In summary, judging the gender of the fetus through fetal heart rate is not scientific, reliable and accurate. Pregnant women and family members should treat pregnancy check-ups with a scientific attitude and avoid believing and spreading unsubstantiated rumors and false information. At the same time, you should follow your doctor\’s recommendations and conduct standardized pregnancy examinations to ensure the health and safety of your fetus.