How does the hand suddenly become very dry and desquamate?

There are many reasons for dry and peeling hands, mainly the following:

First, the skin on the surface is too thick. Because of frequent labor and mechanical friction of hands, the skin becomes thick, hard and inelastic. In addition, hands are dry and sebaceous glands secrete less. So the skin on your hands will fall off.

Second, the skin is dry and infected with bacteria.