First, a picture:
She is 3.5 months old. She was born with quite long hair, some fell but now it looks like she has a ring around the head, just above the ears, where hair is really thin.
My gf's take on it is that since we (I) carry her too much, he head rubs in this area and the hair falls. When I hold her, there is definitely contact between my arm and this area.
I'm curious if this is a common hair loss pattern for that age? or if it is possible that rubbing while carrying creates the hair loss? When I look only, they only talk about newborns losing their hair, but nothing about children that age.