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autoimmune

Systemic Sclerosis

A rare autoimmune disease causing thickening and hardening of the skin and internal organs.

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Overview

Systemic sclerosis (scleroderma) is a rare and complex autoimmune disease characterized by excessive collagen production, leading to thickening and hardening (fibrosis) of the skin and internal organs. The disease varies widely in severity — from limited skin involvement to life-threatening organ damage.

There are two main forms: limited cutaneous systemic sclerosis (formerly CREST syndrome) and diffuse cutaneous systemic sclerosis. Limited affects the skin of the face, hands, and feet and tends to progress more slowly, while diffuse affects larger areas of skin and internal organs more aggressively.

The condition is much more common in women and typically develops between ages 30 and 50. Early diagnosis and monitoring of organ involvement — particularly the lungs, heart, kidneys, and gastrointestinal tract — are essential for preventing serious complications. Raynaud's phenomenon is present in almost all patients and often precedes other symptoms by years.

Symptoms

  • Raynaud's phenomenon (often the first symptom)
  • Skin thickening and hardening, especially on fingers, hands, and face
  • Skin tightening causing reduced facial expression and mouth opening
  • Finger swelling (puffy hands) early in disease
  • Digital ulcers — painful sores on fingertips
  • Acid reflux and difficulty swallowing
  • Shortness of breath (lung involvement)
  • High blood pressure (kidney involvement)
  • Heart palpitations or heart failure
  • Bowel changes — bloating, constipation, diarrhea
  • Joint pain and stiffness

Diagnosis

  1. Blood tests — ANA; anti-centromere antibodies (associated with limited form) and anti-Scl-70/topoisomerase I (associated with diffuse form)
  2. Nailfold capillaroscopy — shows characteristic enlarged and abnormal capillaries
  3. Pulmonary function tests — to detect interstitial lung disease
  4. High-resolution CT scan of the chest — to evaluate for lung fibrosis
  5. Echocardiogram — to assess heart function and pulmonary artery pressure
  6. Skin biopsy — may show characteristic fibrosis
  7. Esophageal studies — to evaluate swallowing and reflux

A rheumatologist leads the diagnosis and coordinates care.

Treatments

  • Immunosuppressive medications — mycophenolate mofetil, cyclophosphamide, or rituximab for lung disease and skin involvement
  • Raynaud's management — calcium channel blockers, prostacyclin analogs, and aggressive warming strategies
  • Digital ulcer treatment — endothelin receptor antagonists (bosentan), phosphodiesterase inhibitors
  • Gastrointestinal treatment — proton pump inhibitors, prokinetic agents, bacterial overgrowth treatment
  • Pulmonary arterial hypertension treatment — specialized vasodilator therapies
  • Renal crisis prevention — ACE inhibitors (captopril) for early detection and treatment of scleroderma renal crisis
  • Physical and occupational therapy — to maintain hand function and mobility
  • Regular monitoring — annual lung function, echocardiogram, and kidney function tests

Your Care Plan

A step-by-step guide to navigating your condition, from finding the right doctors to advocating for the care you deserve.

Step 1: Doctors to See

Start with: Your primary care physician if you have Raynaud's and skin changes.

Then seek: A rheumatologist who specializes in scleroderma — this is a rare disease and expertise matters.

Build your team:

  • Rheumatologist — for overall disease management
  • Pulmonologist — for interstitial lung disease monitoring
  • Cardiologist — for heart and pulmonary hypertension screening
  • Gastroenterologist — for GI involvement
  • Nephrologist — for kidney monitoring
  • Dermatologist — for skin management
  • Hand/occupational therapist — for hand function

Step 2: Advocate for Yourself

Scleroderma is rare and many doctors have limited experience with it. Ask for a referral to a scleroderma specialist or center of excellence — this can change your outcome. Don't let Raynaud's be dismissed without evaluation for scleroderma, especially if you also have heartburn, finger swelling, or skin changes. Ask for baseline lung function tests and an echocardiogram at diagnosis, even if you don't have symptoms — early lung and heart involvement can be silent.

Step 3: Your Action Plan

  1. See a rheumatologist who specializes in scleroderma.
  2. Get baseline testing: pulmonary function tests, chest CT, echocardiogram, and kidney function.
  3. Get nailfold capillaroscopy and antibody testing (anti-centromere, anti-Scl-70).
  4. Start aggressive Raynaud's treatment to prevent digital ulcers.
  5. Begin regular monitoring of lungs, heart, and kidneys.
  6. Address GI symptoms with a gastroenterologist.
  7. Work with a hand therapist to maintain finger function.
  8. Know the signs of scleroderma renal crisis — sudden high blood pressure requires immediate emergency care.
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