by Daniel Laberge
Human grooming

Folded skin theory, evolution and pathology

Folded skin is similar to pinched skin, but from inside of you.

On this page

What happens to the internal components when the skin is folded.

From early fold formation to engraved folds.

The consequences of folds on skin; cellulite, stretch marks, varicose veins, ...

Folded skin theory

Skin is a living tissue

Skin layers and components

The layers of non-folded skin

Folds have an adverse effect on skin

Folded epidermis and dermis

Folded skin

Inoperative trapped skin components

Complete folds and surface folds

How long is a fold?

Circular articulation folds

Compressed and stretched folds

Compressed and stretched folds on an articulation

Articulations only bend on one side,

producing two kinds of folds.

S
T
R
E
T
C
H
E
D

F
O
L
D
S

Folded finger and arm

C
O
M
P
R
E
S
S
E
D

F
O
L
D
S

You will find stretched and compressed folds at every articulation on your body

Anchoring

Fold angle

Fold angle below the surface

Slanted folds

Folded skin evolution

First folding

BIRTH OF A FOLD

Baby's wrist at rest

• When the wrist is at rest,
there is no fold.

Baby's wrist when flexing begins

• When flexing begins,

the fold starts out very short and  shallow.

Baby's wrist as the flexing accentuates

• As the flexing accentuates,

the fold lengthens and deepens.

 

Baby's wrist at rest

• This ideal skin would bounce back to its unfolded state as soon as the wrist is straitened.

Damage done by repeated folding

Separable containers

Fold repeatedly to break apart

Repeated folding creates heat

Epidermis formation inside a fold

Coating the fold’s floor

Epidermis formation inside a fold

A new coat of epidermis inside a fold

Coats and cyclic activities

Folds growing inward

Epidermis coats inside a fold

Epidermis coats inside a fold

Coats and grooming

Fold pathology;
cellulite, stretch marks and varicose veins

• Cellulite

• Stretch marks

Stretch marks follow parallel fold patterns

• Varicose veins - Blood flow obstructed by folds

Skin layers and components
Folded epidermis and dermis