Sjögren’s Syndrome: Symptoms, Causes, and Diagnosis

Sjögren’s syndrome is a complex autoimmune disease that affects millions of individuals worldwide, often going undiagnosed or misunderstood. Its subtle symptoms can leave many patients struggling to identify the cause of their discomfort.

Understanding Sjögren’s Syndrome

Sjögren’s syndrome is a chronic autoimmune disorder where the body's immune system mistakenly attacks its own moisture-producing glands. This can lead to a wide range of symptoms, both debilitating and manageable, depending on the individual. While it primarily affects the salivary and tear glands, its impact can extend to other organs and systems in the body.

This condition can occur on its own, known as primary Sjögren’s syndrome, or in conjunction with other autoimmune diseases such as lupus or rheumatoid arthritis, referred to as secondary Sjögren’s syndrome.

It is more common in women, typically developing in individuals over the age of 40, but it’s important to note that it can affect people of all ages and genders.

Symptoms of Sjögren’s Syndrome

The symptoms of Sjögren’s syndrome can vary significantly from one person to another. Some may only experience mild discomfort, while others might face more severe complications.

Here are the primary symptoms associated with Sjögren’s syndrome:

1. Dry Eyes

One of the hallmark symptoms of Sjögren’s is dry eye syndrome, which occurs when the eyes don’t produce enough tears or when the tears evaporate too quickly. Patients with this condition often describe symptoms such as:

  • A gritty, burning, or scratchy sensation in the eyes
  • Sensitivity to light
  • Blurred vision
  • Increased discomfort during prolonged screen use or reading

If left untreated, dry eyes can lead to corneal damage or infections, so early intervention is crucial.

2. Dry Mouth (Xerostomia)

Dry mouth, medically known as xerostomia, is another signature symptom. It occurs due to a decrease in saliva production, leading to uncomfortable sensations and potential health issues like:

  • Difficulty speaking or swallowing
  • A sticky or parched feeling in the mouth
  • Increased cavities and gum disease due to a lack of protective saliva
  • Cracked lips and corners of the mouth

3. Swelling of Glands

Individuals with Sjögren’s syndrome may notice swelling around the salivary glands located in the jaw or below the ears. This can sometimes cause pain or tenderness in the area.

4. Fatigue

Chronic fatigue is a common but often overlooked symptom. The immune system’s constant activity fighting against the body's own tissues can leave patients feeling persistently exhausted, even after a full night’s sleep.

5. Joint Pain and Muscle Aches

Joint pain, stiffness, and swelling, particularly in small joints such as those of the hands and wrists, can also occur. Muscle discomfort may accompany or intermittently flare up in individuals with Sjögren’s.

6. Other Systemic Symptoms

Sjögren’s syndrome does not only affect the eyes and mouth. Its impact can extend to other parts of the body, causing a range of systemic symptoms such as:

  • Dry skin and rashes
  • Breathing or swallowing difficulties caused by dryness in the throat or windpipe
  • Digestive issues, including acid reflux
  • Dysfunction in internal organs such as the lungs, kidneys, or liver

These symptoms underline the importance of comprehensive medical attention and early diagnosis.

Causes of Sjögren’s Syndrome

While the exact cause of Sjögren’s syndrome remains unclear, researchers believe it is a combination of genetic, environmental, and hormonal factors. Here’s what we currently know:

1. Genetics

A family history of autoimmune diseases can increase the likelihood of developing Sjögren’s. Certain genetic markers may predispose individuals to immune system irregularities, though the specific genes responsible are still under investigation.

2. Immune Response

Sjögren’s is categorized as an autoimmune disorder because it involves the immune system attacking healthy cells. This misdirected immune response often targets the glands responsible for producing moisture, such as tear and salivary glands.

3. Environmental Triggers

Environmental factors, like viral infections, may act as triggers for the onset of Sjögren’s syndrome in susceptible individuals. While no definitive viral link has been established, researchers continue to explore potential connections.

4. Hormonal Influence

The condition disproportionately affects women, especially those in middle age, leading experts to investigate hormonal factors. Estrogen and other hormone levels may play a role in the development or severity of symptoms.

How Sjögren’s Syndrome is Diagnosed

One of the challenges of diagnosing Sjögren’s syndrome is its broad range of overlapping symptoms with other conditions. However, medical professionals follow various methods to arrive at an accurate diagnosis.

1. Medical History and Symptom Analysis

Healthcare providers typically start by reviewing the patient’s medical history and a detailed account of symptoms. This initial assessment helps identify patterns or indicators associated with Sjögren’s syndrome.

2. Blood Tests

Specific blood tests can identify markers commonly found in individuals with Sjögren’s, such as:

  • Antibodies (e.g., Anti-SSA/Ro and Anti-SSB/La)
  • Elevated erythrocyte sedimentation rate (ESR) indicating inflammation
  • Abnormalities in white blood cell count

Tests checking for signs of other autoimmune disorders may also be conducted, particularly in secondary Sjögren’s cases.

3. Schirmer’s Test

This simple test measures tear production to determine the extent of dryness in the eyes. Strips of special paper are placed under the lower eyelids to evaluate tear output over a set period.

4. Imaging Tests

Imaging studies, such as salivary gland scans or ultrasound, can assess any abnormalities or damage in the glands.

5. Lip Biopsy

When required, a doctor may conduct a lip biopsy to obtain a small sample of salivary gland tissue. This biopsy is analyzed under a microscope to confirm the presence of specific cellular inflammation indicative of Sjögren’s syndrome.

6. Eye Examination

Specialized eye exams may also be performed by an ophthalmologist to evaluate dryness and other abnormalities caused by inadequate tear production.

Conclusion

Sjögren’s syndrome can be a life-altering condition, but with early recognition and proper care, its symptoms can be managed effectively. If you’re experiencing persistent dryness, fatigue, or other concerning signs, consider consulting a healthcare professional for evaluation and direction.