alt Hacker NewsYou shouldn't need a medical background to know that having something press on a spot for a couple of hours will leave a depression in your skin.
You have probably fallen asleep on something patterned or folded and have it leave an impression on your skin before: This is no different.
Other places it happens: Watches that are slightly too tight or have ridden up an arm. Glasses arms pressing against your temple or behind the ear. Tight socks after a day wearing them.
It's not a medical problem. It's just general physics.
> shouldn't need a medical background to know that having something press on a spot for a couple of hours will leave a depression in your skin
I read “soft tissue on top of” the skull to mean more than a superficial skin depression.
We have layers of connective tissue between the skin and skull [1]. Their damage usually calls for medical attention.
[1] https://www.earthslab.com/anatomy/scalp/