The cause of sarcoidosis is unknown, but it is likely that there may be more than one cause.
While we do not know sarcoidosis' cause, other important facts about its development are known.
Sarcoidosis occurs more often in Caucasians of European descent and in African-Americans. About 10 to 40 out of every 100,000 people develop sarcoidosis. It is most common in young people between the ages of 20 and 40. Sarcoidosis is not contagious.
This information has been approved by Lisa Maier, MD, FCCP, MSPH. (July 2008).
