What is the normal fetal heart rate for a male baby?

Generally, there is no significant or fundamental difference in fetal heart rate between male and female fetuses. The normal range of fetal heart rate is typically between 110 and 160 beats per minute. Detailed analysis is as follows:

The fetal heart rate exhibits certain variations during different stages of pregnancy. In early pregnancy, ultrasound examination can detect the fetal primitive cardiac pulsation. At this stage, the heart rate is relatively fast, usually reaching 160 to 180 beats per minute. As gestational age increases, the fetal heart rate gradually stabilizes within the conventional range of 110 to 160 beats per minute.

The fetal heart rate can be influenced by multiple factors. For example, when the fetus is active, such as extending arms, kicking legs, or rolling over, the fetal heart rate may temporarily increase beyond 160 beats per minute. This is a normal physiological response. Once the fetal activity ceases and the fetus becomes quiet, the heart rate will gradually return to the normal range.

However, if factors such as umbilical cord around the neck, placental dysfunction, or insufficient maternal blood oxygen levels lead to fetal hypoxia, the fetal heart rate typically increases initially as an attempt to compensate for the hypoxic condition. If hypoxia persists and worsens, the heart rate may gradually slow down to below 110 beats per minute. This is a very dangerous situation that requires prompt medical attention.