Immune System Disorders
Immune system disorders are conditions where the body’s defense system malfunctions. This can mean the immune system is too active, attacking healthy tissues (autoimmune diseases), or not active enough, making the body vulnerable to infections (immunodeficiency). Common examples include allergies, rheumatoid arthritis, and HIV/AIDS. These disorders disrupt the body’s ability to protect itself, often requiring medical management to control symptoms and prevent complications.
Immune System Disorders
Immune system disorders are conditions where the body’s defense system malfunctions. This can mean the immune system is too active, attacking healthy tissues (autoimmune diseases), or not active enough, making the body vulnerable to infections (immunodeficiency). Common examples include allergies, rheumatoid arthritis, and HIV/AIDS. These disorders disrupt the body’s ability to protect itself, often requiring medical management to control symptoms and prevent complications.
💡 Key Takeaways
- Understand the major categories of immune system disorders: autoimmune diseases, immunodeficiencies, and allergies.
- Identify common signs and symptoms and when to seek medical advice.
- Learn how immune system disorders are diagnosed, including typical tests and specialist referrals.
- Explore treatment options and ongoing management, including medications, therapies, and lifestyle adjustments.
❓ Frequently Asked Questions
What is an immune system disorder?
A condition in which the immune system doesn’t function normally, either overreacting (autoimmune or allergic reactions), underreacting (immunodeficiency), or reacting to harmless substances.
What is the difference between autoimmune disease and immunodeficiency?
Autoimmune diseases occur when the immune system attacks the body's own tissues; immunodeficiency means the immune system is weaker or less effective than normal, leading to more or unusual infections.
What are common autoimmune diseases?
Examples include type 1 diabetes, rheumatoid arthritis, lupus (SLE), multiple sclerosis, and inflammatory bowel diseases like Crohn's disease and ulcerative colitis.
What are common signs of immune system disorders?
Frequent or severe infections, infections that don’t heal well, persistent fatigue, or autoimmune symptoms such as joint pain, rashes, or swelling.
What is the difference between primary and secondary immunodeficiencies?
Primary immunodeficiencies are genetic and present from birth. Secondary immunodeficiencies develop later due to infections, medical treatments (e.g., chemotherapy), malnutrition, or aging.