Wrinkles are distinguished lines and creases that form around the eyes (crows feet), on the forehead, around the nose, corners of the mouth (laugh lines), and on the neck. Other places they can appear include:
• On the backs of hands
• Tops of forearms
• Between the eyebrows (frown lines)
• On the upper lip
• On the cheeks
• In front of the ears.
Any place on the skin that is most exposed to the sun is where fine lines and wrinkles generally appear.
Fine lines and wrinkles can also be accompanied by other signs of aging and skin damage such as a dry and brittle skin surface, age spots, and loose and saggy skin. People who are consistently exposed to the sun's harmful rays without proper protection can also develop a leathery skin texture.
Wrinkles are put into two categories; fine lines and deep furrows.