Seal?s appearance is the classic example of the condition discoid lupus erythematosus (DLE). Seal contracted the disease at 23, a condition where the immune cells attack various body tissues; DLE usually affects young people. Intense inflammation develops in the skin, particularly in sun-exposed areas, and if not treated aggressively with sun protection and anti-inflammatory medicines, scarring can result. Not only did it cause the cheek scars, but he had significant scalp involvement, causing hair loss. The singer?s condition has been in remission for years.