Causes of Autoimmune Diseases and Their Treatment Methods

Tuesday, May 12, 2026

SAEDNEWS: An autoimmune disease occurs when the immune system mistakenly attacks the body’s healthy cells, treating them as foreign and causing damage.

Causes of Autoimmune Diseases and Their Treatment Methods

According to Saednews, An autoimmune disease is a disorder in which the body’s immune system mistakenly attacks its own healthy tissues. Normally, the immune system protects the body against harmful microorganisms such as bacteria and viruses. When it detects foreign invaders, it sends defensive cells to fight them.

Under normal conditions, the immune system can distinguish between the body’s own cells and foreign cells. In autoimmune diseases, however, it misidentifies parts of the body (such as joints or skin) as foreign threats. As a result, it produces proteins called autoantibodies that attack healthy cells.

Causes of Autoimmune Disease

Possible contributing factors include:

  • Bacterial or viral infections

  • Medications

  • Chemical triggers

  • Environmental factors

However, doctors still do not know the exact cause of autoimmune disorders. Some people are more genetically predisposed than others. These diseases are more common in women than men, especially during reproductive years (ages 14 to 44).

Certain autoimmune diseases are more common in specific populations. For example, African Americans and Hispanic individuals are more likely to develop lupus compared to white populations.

Some autoimmune diseases, such as multiple sclerosis and lupus, may have a hereditary component. However, not all family members necessarily develop the same condition.

Researchers also suspect environmental factors such as infections and exposure to chemicals or solvents. A “Western diet” is another possible factor, although not fully confirmed. Diets high in fat, sugar, and processed foods may contribute to inflammation, potentially disrupting immune function.

Another theory is the “hygiene hypothesis,” which suggests that modern children are exposed to fewer microbes due to vaccines and sanitation. This reduced exposure may lead the immune system to overreact to harmless substances.

Common Types of Autoimmune Diseases

  • Rheumatoid arthritis: inflammation of joints and surrounding tissues

  • Systemic lupus erythematosus: affects skin, joints, kidneys, brain, and other organs

  • Celiac disease: immune reaction to gluten causing damage to the small intestine

  • Pernicious anemia: reduced red blood cells due to poor vitamin B12 absorption

  • Vitiligo: loss of skin pigment causing white patches

  • Scleroderma: connective tissue disease affecting skin, blood vessels, muscles, and internal organs

  • Psoriasis: skin disease causing redness, scaling, and irritation

  • Inflammatory bowel diseases: chronic inflammation of the digestive tract

  • Hashimoto’s disease: inflammation of the thyroid gland

  • Addison’s disease: adrenal hormone deficiency

  • Graves’ disease: overactive thyroid gland

  • Reactive arthritis: joint inflammation often involving eyes, urinary tract, and skin

  • Sjögren’s syndrome: destruction of glands producing tears and saliva, causing dry eyes and mouth

  • Type 1 diabetes: destruction of insulin-producing cells in the pancreas

Symptoms of Autoimmune Disease

Common symptoms include:

  • Fatigue

  • Muscle pain

  • Inflammation and redness

  • Mild fever

  • Difficulty concentrating

  • Numbness or tingling in hands and feet

  • Hair loss

  • Skin rashes

Diagnosis of Autoimmune Diseases

Diagnosing autoimmune diseases usually requires more than one test. Doctors evaluate symptoms along with laboratory results.

One of the first tests often used is the antinuclear antibody (ANA) test. A positive result suggests an autoimmune condition, but further testing is needed to identify the specific disease.

Common Diagnostic Tests

  • Autoantibody tests: identify specific antibodies in the body

  • Antinuclear antibody (ANA) test: detects antibodies targeting cell nuclei

  • Complete blood count (CBC): measures red and white blood cells

  • C-reactive protein (CRP): indicates inflammation in the body

  • Erythrocyte sedimentation rate (ESR): indirectly measures inflammation

Treatment of Autoimmune Disease

Autoimmune diseases are chronic and currently have no definitive cure. Treatment focuses on controlling symptoms and reducing disease activity, especially during flare-ups.

Lifestyle recommendations include:

  • Eating a balanced and healthy diet

  • Regular physical activity

  • Adequate rest

  • Vitamin supplements

  • Stress reduction

  • Limited sun exposure when necessary

  • Avoiding known triggers

Conclusion

There are more than 80 types of autoimmune diseases. Their symptoms often overlap, making diagnosis difficult. These conditions are more common in women and may sometimes run in families.

Various tests help doctors identify autoimmune disorders. Treatments aim to suppress overactive immune responses and reduce inflammation. If any symptoms appear, it is important to consult a doctor as early as possible.