Sjogren s syndrome is an autoimmune disease.Its incidence rale is only lower than rheumatoid arthritis.Salivary glands and lacrimal glands are often affected.

• 干燥综合征是一种发病率仅次于类风湿关节炎的自身免疫病,多累及涎腺和泪腺,以中年女性多见。