What causes a dimple?

To understand this, we should first realize that our skin is in two layers. There is the outer layer and the inner one which carries nerves and blood-vessels.

Beneath the skin is a loose layer of tissue which contains fibres that run in all directions. A few of these fibres are attached to the under-surface of the skin so that, although we can move the skin about very freely, there is a limit to this movement. Where there is a dimple, the number of fibres are increased and they are rather short. Therefore, their pull on the skin is greater and it is this which causes a dimple.

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