Baby and flat spot

My baby is 9 months old. Since about 3 months old, I noticed a flat “dent” spot on the top of her heads towards the back. More of a flat spot than a dent.

I took her to the doctor immediately and the doctor was not concerned about it.

Now, 6 months later, the thought popped up in my head again and now i’m stressing out all over.

Do babies have perfect round shapes or are dents and flat spots normal?

No. She has never had any falls to cause this.

No. It isn’t from sleeping because her head doesn’t even touch the bed in this location.

PleaS share any stories if you have them. Stressed out mom here ....

Yes. Reaching all milestones

red shows the flat spot