Are autoimmune diseases contagious?

No, autoimmune diseases are not contagious and cannot be transmitted from one person to another. These diseases develop when the immune system mistakenly attacks the body's healthy cells and tissues, rather than attacking pathogens like viruses and bacteria that cause infection. This dysfunction is internal and is not transmitted through direct or indirect contact with an infected person [1].

What are autoimmune diseases?

The immune system is the body's natural defense system, and its function is to protect the body from diseases and infections. In the case of autoimmune diseases, the immune system identifies parts of the body as foreign and attacks them. There are more than 80 types of autoimmune diseases, and they can affect almost any part of the body. For example, rheumatoid arthritis affects the joints, lungs, and eyes, while type 1 diabetes affects the pancreas [1].

Causes and risk factors

The exact cause of autoimmune diseases is not confirmed. However, it is believed that a combination of factors contributes to their development. Autoimmune diseases tend to run in families, suggesting that genes play a role in making some people more susceptible. Additionally, viruses, certain chemicals, and other environmental factors may trigger the onset of the disease in people who are genetically predisposed [1].

Women are more susceptible to developing many types of autoimmune diseases compared to men. Furthermore, having one autoimmune disease increases the likelihood of developing another [1].

Diagnosis and treatment

Diagnosing autoimmune diseases can be difficult because symptoms are often similar among many diseases and may overlap with the symptoms of other conditions. There is generally no single specific test to diagnose a particular autoimmune disease. Diagnosis relies on a combination of laboratory tests, such as the antinuclear antibody (ANA) test, which looks for antibodies that attack healthy cells, in addition to the patient's symptoms and medical history [2].

The goal of treatment is usually to suppress the immune system and relieve inflammation and pain. Doctors may prescribe corticosteroids or other medications to help control symptoms. In some cases, the patient may require lifelong treatment [1].

Next steps and warning signs

If you are experiencing symptoms such as fever, skin rash, severe fatigue, joint pain, or swollen glands, these could be signs of an autoimmune disorder [2]. It is important to consult a doctor to evaluate the symptoms and perform necessary examinations. Tracking symptoms and your family's health history can assist in the diagnostic process. For more information about autoimmune diseases, you can visit Autoimmune Diseases: Understanding Causes, Diagnosis, and Modern Treatment Options (Arabic).

Medical references

• Autoimmune Diseases
• ANA (Antinuclear Antibody) Test