How To Grow Baby Hair In Womb. After baby sheds and eats her lanugo, she will develop vellus hair on the same areas that the lanugo coated previously. All the follicles appear by now, and no new follicle grows after the birth of the baby.
And a disgusting fun fact: And even before hair sprouts, this stretch results in the parietal hair whorl — that clockwise (or counterclockwise) twirl of hair on the back of your head.
11 Weeks Pregnant ALL YOU NEED TO KNOW Pregnancy 11
As it turns out, if you want your baby to have a better chance of growing lots of hair in the womb, it all comes down to estrogen. Babies eat the lanugo that they shed while in the womb, and it builds up within them to form the substance that makes up their first poop, known as meconium.