Sjögren’s syndrome is a chronic autoimmune disease in which the immune system attacks the glands that produce moisture, primarily the tear and saliva glands. It affects an estimated 1.5 to 4 million people in the United States, with women outnumbering men by a ratio of roughly 16 to 1. While dry eyes and dry mouth are the hallmark symptoms, Sjögren’s is a systemic disease that can affect joints, lungs, kidneys, nerves, and blood cells.
How the Immune System Damages Moisture Glands
In a healthy body, salivary and tear glands produce fluid continuously. In Sjögren’s syndrome, clusters of immune cells, mostly a type of white blood cell called T lymphocytes, migrate into these glands and settle near blood vessels and ducts. Pathologists call these clusters “foci,” and finding them on a biopsy is one of the strongest diagnostic markers for the disease.
The damage happens on two fronts. First, the physical presence of these immune cell clusters disrupts the gland tissue itself. Second, B lymphocytes within the clusters produce autoantibodies, proteins that mistakenly target the body’s own cells. The two most important of these are called SSA (Ro) and SSB (La). Together, the cellular invasion and the autoantibodies reduce tear and saliva production, sometimes severely. Over time, persistent inflammation can cause irreversible gland damage, which is why early recognition matters.
Primary vs. Secondary Sjögren’s
Sjögren’s syndrome comes in two forms. Primary Sjögren’s develops on its own, without another autoimmune disease present. Secondary Sjögren’s occurs alongside conditions like rheumatoid arthritis, lupus, scleroderma, or polymyositis. Both forms produce similar dryness symptoms, but secondary Sjögren’s adds its effects on top of whatever the underlying disease is already causing.
Symptoms Beyond Dry Eyes and Dry Mouth
Most people associate Sjögren’s with dryness, and that’s where it usually starts. Daily, persistent dry eyes that feel gritty or sandy, and a dry mouth that makes swallowing dry food difficult without liquids, are the two classic complaints. Dry skin affects up to 72% of patients. But the disease often reaches well beyond moisture glands.
Joint pain is the most common extraglandular symptom, reported by up to 96% of patients at some point. Actual inflammatory arthritis, with visible joint swelling, occurs in about 17%. Muscle aches affect more than 70% of patients. Fatigue, while harder to measure, is one of the most disabling day-to-day symptoms people describe.
Other systems can be involved as well:
- Lungs: Up to 20% of patients develop pulmonary complications, with chronic cough being the most frequent respiratory symptom.
- Nervous system: Peripheral nerve involvement occurs in roughly 4% to 16% of patients, causing numbness, tingling, or burning sensations. Central nervous system involvement is less common, around 5%.
- Kidneys: About 5% develop clinical kidney disease, most often a form that affects the kidney’s ability to regulate acid levels in the blood.
- Blood cells: Low white blood cell counts appear in 19% to 22% of patients, and low platelet counts in about 30%. Anemia from chronic inflammation occurs in roughly 17% to 24%.
- Skin: Raynaud’s phenomenon, where fingers turn white or blue in cold temperatures, affects 16% to 35% of patients. Skin inflammation from blood vessel damage appears in 10% to 30%.
The Lymphoma Connection
The most serious complication of Sjögren’s syndrome is an elevated risk of non-Hodgkin lymphoma, a type of blood cancer. People with Sjögren’s face a 7- to 19-fold higher risk compared to the general population, the highest lymphoma risk among all systemic autoimmune diseases. The overall prevalence in Sjögren’s patients is estimated between 2.7% and 9.9%. This is why long-term monitoring matters, particularly watching for unexplained swelling of salivary glands, new lumps, or sudden worsening of symptoms.
How Sjögren’s Is Diagnosed
Diagnosing Sjögren’s can be slow because dryness symptoms overlap with many other conditions, medication side effects, and aging. The current standard uses the 2016 ACR-EULAR classification criteria, a weighted scoring system that requires a total of 4 or more points from five possible items.
The two highest-weighted tests, each worth 3 points, are a positive blood test for SSA (Ro) antibodies and a minor salivary gland biopsy showing immune cell clusters with a focus score of 1 or higher. Either one alone, combined with confirmed dryness symptoms, is enough to meet the diagnostic threshold. The remaining three items are each worth 1 point: an eye surface damage score above a set threshold, a tear production test showing 5 millimeters or less of moisture in 5 minutes, and an unstimulated saliva flow rate at or below 0.1 milliliters per minute.
Blood testing is typically the first step because it’s non-invasive. SSA antibodies are found in about 60% to 80% of Sjögren’s patients, while SSB antibodies appear in 30% to 50%. That means 20% to 40% of patients with the disease will have negative antibody results. For those patients, a lip biopsy, where a small sample of minor salivary glands is taken from the inside of the lower lip, becomes especially important for confirming the diagnosis.
Treatment for Dryness Symptoms
There is no cure for Sjögren’s syndrome, so treatment focuses on relieving symptoms and preventing complications. For dry eyes, artificial tears used throughout the day are the foundation. In more severe cases, moisture chamber glasses or goggles create a humid microenvironment around the eyes by blocking wind and trapping moisture. These are particularly helpful for people who experience overnight exposure or work in dry, air-conditioned spaces.
For dry mouth, staying hydrated and sipping water frequently helps, but sometimes the glands need direct stimulation. Pilocarpine is the most commonly used medication for this purpose. It works by activating the remaining functional gland tissue to increase saliva output. Sugar-free lozenges and gum can also stimulate saliva flow between doses. Dry mouth raises the risk of cavities and oral infections significantly, so frequent dental visits and good oral hygiene become essential parts of managing the disease.
Treatment for Systemic Disease
When Sjögren’s moves beyond dryness into joint pain, lung involvement, or blood cell abnormalities, treatment shifts toward controlling the overactive immune system. Hydroxychloroquine, an antimalarial drug widely used in lupus as well, is a common first-line option for joint symptoms and mild systemic disease. It can be combined with other immune-suppressing medications for moderate to severe cases.
Low-dose corticosteroids help control flares, particularly for lung involvement or dangerously low platelet counts. For longer-term management of lung disease, immunosuppressive drugs that reduce the overall activity of the immune system are used to prevent progressive scarring. The choice of treatment depends heavily on which organs are affected and how active the disease is at any given time, so care is typically managed by a rheumatologist who can adjust the approach as the disease evolves.
Living With Sjögren’s Day to Day
Beyond medications, daily habits make a real difference. Humidifiers in the bedroom reduce overnight dryness in the eyes, nose, and throat. Avoiding fans blowing directly on your face, wearing wraparound sunglasses outdoors, and blinking consciously during screen time all protect the eye surface. For dry mouth, limiting caffeine and alcohol (both of which reduce saliva) and breathing through the nose rather than the mouth help preserve what moisture your glands still produce.
Fatigue is one of the hardest symptoms to manage because no single treatment reliably controls it. Many patients find that pacing activities, prioritizing sleep, and moderate exercise help more than any medication. Because Sjögren’s is a lifelong condition that fluctuates in severity, building sustainable routines around symptom management tends to matter more than chasing any single treatment.