Alopecia Areata - Hair loss Causes & Living With It | NIAMS
Alopecia areata is a disease that happens when the immune system attacks hair follicles and causes hair loss. Hair follicles are the structures in skin that form hair. While hair can be lost …
How your gut bacteria affects your immune system
2015年2月16日 · The immune system detects specific proteins from the bacteria, and this detection seems to increase the immune system’s response to the flu vaccine. Then your body …
What Is Scleroderma? Symptoms & Causes| NIAMS
2023年6月22日 · Immune system changes. Abnormal immune or inflammatory activity in your body triggers cell changes that cause the production of too much collagen. In some cases, an …
Psoriasis Basics: Overview, Symptoms, and Causes
2024年8月5日 · In psoriasis, your body’s immune system starts working too much and causing problems. Doctors do not fully understand what triggers the immune system, but they know …
Autoimmune Diseases | NIAMS
2023年3月22日 · Your immune system is the network of cells and tissues in your body that work together to defend you from viruses, bacteria, and infection. It tries to identify and destroy the …
Psoriasis Types, Symptoms & Causes | NIAMS
2024年8月5日 · Psoriasis is an immune-mediated disease, which means that your body’s immune system starts overacting and causing problems. If you have psoriasis, immune cells become …
Rheumatoid Arthritis | Health Topics | NIAMS
2024年5月2日 · Rheumatoid arthritis (RA) is a chronic (long-lasting) autoimmune disease that mostly affects joints. RA occurs when the immune system, which normally helps protect the …
Vitiligo Symptoms, Treatment & Causes | NIAMS
2021年3月2日 · Normally, the immune system works throughout your body to fight off and defend your body from viruses, bacteria, and infection. In people with autoimmune diseases, the …
Systemic Lupus Erythematosus (Lupus) - Who gets it? | NIAMS
2024年7月2日 · Lupus occurs when the immune system, which normally helps protect the body from infection and disease, attacks its own tissues. This attack causes inflammation, and in …
What is Pemphigus? Symptoms & Causes | NIAMS
Pemphigus is an autoimmune disease in which the immune system mistakenly attacks cells in the top layer of the skin (epidermis) and the mucous membranes. People with the disease …