Sjögren’s disease is a long-term autoimmune disease in which the immune system attacks the glands that make tears and saliva. Dry eyes and dry mouth are the best-known part, not the whole illness. Many people find the fatigue harder to live with than the dryness.
It is not a nuisance condition about needing eye drops. The Sjögren’s Society of Canada calls it a chronic, systemic, inflammatory autoimmune disease, says it is not limited to dryness and can affect every organ and system in the body. Arthritis Society Canada lists joints, muscles, nerves, lungs and kidneys among the areas involved.
It is also not always on its own. Arthritis Society Canada reports about half of people diagnosed have another rheumatic or connective tissue disease too, such as rheumatoid arthritis, lupus or systemic sclerosis. Vasculitis is a less common complication.
Symptoms vary widely, and fatigue and pain do not track with the dryness.

Some risk factors cannot be changed:
Some things that add to dryness can often be worked on, usually with support from a health care team:
There is no single test, part of why the Sjögren’s Society of Canada calls the disease often undiagnosed, misdiagnosed and undertreated. Arthritis Society Canada lists the Schirmer tear test for tear production, lissamine green dye staining of the eye surface, antibody blood tests including antinuclear and anti-SSA antibodies, and a biopsy of a minor salivary gland from inside the lip. Because the disease is systemic, assessment looks beyond the glands: lung imaging, kidney blood and urine tests, or nerve testing. A rheumatologist usually leads.
Care aims at symptoms and at protecting the eyes, mouth and organs. A health care team may discuss:
What suits one person will not suit another. These are decisions for you and your own clinician.
There is currently no systemic treatment approved for Sjögren’s disease. Reporting phase 3 results for the candidate ianalumab in August 2025, Novartis described a landscape with no approved systemic treatments and only limited symptomatic options. Late-stage trials are testing medicines acting on the immune pathways involved, including B-cell directed approaches. Other questions stay open: why fatigue and pain do not track with gland damage, how to shorten the time to diagnosis, and who is at higher risk of lung, nerve or lymphoma complications.
Taking part is voluntary. You give informed consent first, and you can stop at any time without affecting the care you get from your own doctor. No one can say in advance whether a study will help you personally.
This page is written in plain language for people considering clinical research. It is general health information, not medical advice, and it does not replace a conversation with your own doctor or nurse practitioner.
No. Dryness is the most recognisable part but not the whole disease. The Sjögren's Society of Canada states that Sjögren's is a systemic disease, is not limited to dryness, and can impact every organ and system in the body. Arthritis Society Canada lists joints, muscles, nerves, lungs, kidneys and the thyroid among the areas that can be involved, and reports that complications beyond dry eyes and dry mouth occur in fewer than 20% of people. Fatigue is one of the features people most often describe as disabling, and it is not explained by dryness alone.
There is no single test. Dry eyes and dry mouth are common for many reasons, including medicines and ageing, so they are easy to attribute to something else. Diagnosis usually needs a combination of eye tests such as the Schirmer tear test and dye staining, antibody blood tests, and sometimes a biopsy of a minor salivary gland from inside the lip. The Sjögren's Society of Canada describes the disease as often undiagnosed, misdiagnosed and undertreated. Keeping a written record of your symptoms, how long they have lasted and what makes them worse gives a clinician more to work with.
Because there is currently no approved systemic treatment for the disease itself, only treatments aimed at symptoms. Studies are how candidate medicines that target the immune pathways involved are tested, and how researchers learn which people respond and which do not. Taking part usually means closer monitoring and extra assessments than routine care. Participation is voluntary, you give informed consent before anything begins, you can withdraw at any time without affecting the care you get from your own clinicians, and no one can say in advance whether a study will help you personally.