Why do Fingers Wrinkle in Water?

If you’ve ever looked at your hands after a long bath, you might have asked why do fingers wrinkle in water. The reason has to do with how our skin is constructed. The skin is made up of several layers, and the toughest layer on the outside has a lot of dead keratin cells (a type of protein). When we take a long bath or go swimming, the keratin cells absorb a lot of water and the surface area of the skin gets larger. Because the skin layers are so tightly attached to each other, the skin compensates for this extra surface area by forming wrinkles. You can find more information here: