define sjogren disease
Knowledge center. Sjogren's syndrome (Sjoegrens SjÃ¶grens) syndrome is a chronic disorder of the immune-system a-long term autoimmune-disease in which the'patient s white blood cells attack the saliva and tear, glands leading to dry mouth and eyes because the'body s tear and saliva production is. reducedjogren's syndrome is an autoimmune disease-the patient's immune system attacks healthy cells and tissues, mistaking them for dangerous pathogens, such as infectious bacteria or viruses. Experts are not sure why Sjogren's syndrome affects some individuals, and not others.