Reiter's syndrome is the combination of three seemingly unlinked symptoms—an inflammatory arthritis of large joints, inflammation of the eyes (conjunctivitis and uveitis) and urethritis. It is named after Hans Reiter, a German military physician, who in 1916 described the disease in a World War I soldier who had recovered from a bout of diarrhea. It is also known as arthritis urethritica, venereal arthritis, reactive arthritis and polyarteritis enterica.