The sun can cause harmless effects such as wrinkles and premature aging, which can be unsightly. Other harmless but undesirable effects of the sun include lentigoes (brown spots) IGH or hypomelanosis (white spots), and loss of elasticity of the skin. But, the sun can also cause precancer and skin cancer which might require surgical intervention to remove. Precancers usually require either reshave removal or freezing with liquid nitrogen which can be unpleasant. Skin cancers, depending on type and depth can require either electrodessication and curettage, excision, radiation therapy or Mohs surgery.