Lupus appears in one of two forms: (1) Discoid lupus erythematosus (lupus vulgaris), which can be chronic but is less severe, may cause a red, scaly rash, usually on the face; (2) Systemic lupus erythematosus (SLE or lupus) is the most common and severe form of lupus.
There are an estimated 500,000 to 1.5 million people in the USA with lupus. In Korea it is estimated that there are about 150,000 women and men suffering from the disease. However, there are only 100,000 that have been recognized/diagnosed. Other 50 thousand are either not treated or not diagnosed.