Sjogren syndrome (MONDO_0010030, a Monarch Disease Ontology id) is an autoimmune disorder in which immune cells attack and destroy the glands that produce tears and saliva. Sjögren syndrome is also associated with rheumatic disorders such as rheumatoid arthritis or systemic lupus erythematosus. The hallmark symptoms of Sjögren syndrome are dry mouth and dry eyes. In addition, Sjogren syndrome may cause skin, nose, and vaginal dryness. It also may affect other organs of the body including the kidneys, blood vessels, lungs, liver, pancreas, and brain. Also known as: Sjögren syndrome, Sjögren-Gougerot syndrome, primary Sjogren-Gougerot syndrome, primary Sjögren-Gougerot syndrome, sicca syndrome, syndrome, Sjogren's, xerodermosteosis.