Can the color of areola during pregnancy tell whether the fetus is male or female?

There are two main views on seeing men and women through breast changes during pregnancy. One is that the bust of pregnant girls is larger than that of pregnant boys, because the male fetus secretes more testosterone and needs more energy from the mother, which directly inhibits the increase of breasts. Another is to look at the color of the areola. Some say that if the color of the left areola is dark or even black, it means that the probability of having a boy is high; If the areola of the right breast is darker, it means that the probability of giving birth to a girl is higher. Or simply "black nipples give birth to boys."

In fact, nipple color is not determined by the sex of the fetus. After pregnancy, progesterone in pregnant mothers will stimulate the hormone level of melanocytes to increase, resulting in the original black part of the body surface becoming darker. Moreover, due to the secretion of progesterone, the breasts will increase to varying degrees, which has nothing to do with the sex of the fetus, but with the pregnant mother's own physique.