A wrinkle is a fold, ridge, crease, or deep grove in the
skin that increases in occurrence with sun exposure
and old age. Wrinkles are a normal sign of aging.
Wrinkles in the skin around the mouth are associated
with cigarette smoking. In general, wrinkles are
associated with degeneration (break down) of the
elastic skin tissue and a loss of water from skin
cells.This is why dehydration can cause wrinkles.
Wrinkles can also occur temporarily by immersing certain parts of the body (e.g., fingers
and toes) in water for several minutes). This is because the outside layer of skin absorbs
the water causing the skin to expand in uneven ways, which leads to the wrinkled
Temporary wrinkles can also be caused by stretching the skin in certain ways such as
facial expressions or changes in joint position. There are various medical treatments
designed to reduce or eliminate wrinkles. However, the most dramatic way to reduce
facial wrinkles is through facelift surgery (known as rhytidectomy) in which excess facial
skin is removed (with or without tightening the underlying tissue) and then redraping the
skin on the patient’s face and neck.
Wrinkle comes from the Old English word “gewrinclian” meaning “to wind.”