What is Sjogren's Syndrome

Sjogren's syndrome is an order to invade and, Especially the lacrimal gland and salivary glands characterized by autoimmune disease. Its characteristics for the lacrimal gland secretion of the salivary glands and reduced-shaped distribution of keratoconjunctivitis dry mouth and dry. Sjogren's syndrome is a global disease, more than 90 percent are female, age of onset is 40 to 60-year-old mostly in the elderly, children with less. As has been the lack of uniform diagnostic criteria, the prevalence of the disease very accurate. General estimated at 0.1% - 0.7%. In the United States, the incidence of Sjogren's syndrome after rheumatoid arthritis. Over the years, this disease in our country has been a stranger until 1980 after only draw attention, and their observation, research. The crowd of more than 10,000 national survey found that the disease prevalence rate of 0.29% -0.77%, that in China the disease prevalence rate of not less than rheumatoid arthritis 0.3% ~ 0. 4% morbidity. Sjogren's syndrome is divided into primary and secondary two. Primary Sjogren's syndrome is a simple drying of keratoconjunctivitis and dry mouth, without other rheumatic diseases; secondary Sjogren's syndrome is rheumatoid arthritis, systemic lupus erythematosus and systemic hard skin diseases associated with the mouth, dry eyes of.