Desquamation is the natural process the body goes through to shed the outermost layer of its skin as surface level cells die. Normal desquamation is not noticeable, and happens daily without much notice.
Abnormal desquamation, however, can occur as a result of skin disorders that cause peeling or abnormal amounts of dead, dry, flaky skin to accumulate on the skin’s surface. These disorders can range from dandruff to psoriasis. When the skin suffers from burns or sun damage, dead skin will naturally peel off as the burns heal.