Wrinkles are creases, folds, or ridges in the skin. They normally appear as people get older.
The first wrinkles to appear on a person’s face tend to occur as a result of facial expressions.
Sun damage, smoking, dehydration, some medications, and environmental and genetic factors affect when and where people will develop wrinkles.
Most wrinkles tend to appear in the parts of the body which receive the most sun exposure, especially the face and neck, the back of the hands, and the arms.