A focused evaluation of scalp hair should be part of every ... of the midline 14% at midline. Observe the infant's anterior and posterior hair margins for a distinct demarcated hairline.

"Likewise, attributes of scalp hair—its length, shape, color and loss of hair—play an essential role in social communication.

synchronized cycles of hair growth and loss occur simultaneously. Anagen, or growing hair follicles, cover the entire scalp by about 18 to 20 weeks gestation. At 24 to 28 weeks gestation ...