What is Acne? Definition & Types | NIAMS - National Institute of ...
Acne is an inflammatory disorder of the skin, which has sebaceous (oil) glands that connects to the hair follicle, which contains a fine hair. In healthy skin, the sebaceous glands make sebum that empties onto the skin surface through the pore, which is an opening in the follicle. Keratinocytes, a type of skin cell, line the follicle.
Rheumatoid Arthritis | Health Topics | NIAMS
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 body from infection and disease, attacks its own tissues. The disease causes …
Arthritis and Rheumatic Diseases & Conditions | NIAMS
2023年9月6日 · Rheumatoid arthritis (RA) is an autoimmune disease that causes joint inflammation, pain, and stiffness. There are several treatment options to control inflammation, but response to therapy varies and some people with RA never reach remission, suggesting there may be different drivers of inflammation.
NIH Researchers Discover a New Inflammatory Disease Called VEXAS
2020年11月4日 · NIH scientists led an international team of researchers toward discovery of a new, adult-onset inflammatory disease abbreviated the VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome. Middle-aged men with this condition experienced fevers, low blood cell counts, and inflammation of the skin, lungs, cartilage, and blood ...
Systemic Lupus Erythematosus (Lupus) - Who gets it? | NIAMS
The cause of lupus is unknown, and researchers are still trying to learn what may trigger or lead to the disease. Doctors know that it is a complex autoimmune disease in which the body’s immune system attacks the person’s tissues and organs. Studies show that certain factors may trigger your immune system, causing the disease.
Atopic Dermatitis Treatment, Symptoms & Causes | NIAMS
Atopic dermatitis, often referred to as eczema, is a chronic (long-lasting) disease that causes inflammation, redness, and irritation of the skin. It is a common condition that usually begins in childhood; however, anyone can get the disease at any age. Atopic dermatitis is not contagious, so it cannot be spread from person to person.
Juvenile Arthritis Treatment & Diagnosis | NIAMS
Pitted fingernails and dactylitis (swollen fingers or toes) are also signs of the disease. Systemic juvenile idiopathic arthritis. Systemic means the disease can affect the whole body, not just a specific organ or joint. Systemic JIA usually starts with fever and rash that come and go over the span of at least 2 weeks.
Psoriasis Types, Symptoms & Causes | NIAMS
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 active and produce molecules that set off the rapid production of skin cells. This is why skin in people with the disease is inflamed and scaly.
Psoriatic Arthritis Symptoms & Diagnosis | NIAMS
Inflammatory bowel disease, which causes inflammation in the digestive tract, occurs in some people. Causes of Psoriatic Arthritis Psoriatic arthritis is an immune-mediated disease, which means that your immune system overacts and causes problems.
What Is Scleroderma? Symptoms & Causes| NIAMS
The disease usually appears between the ages of 30 and 50 and is more common in adults than children. Race. Scleroderma can affect people of all races and ethnic groups, but the disease can affect African Americans more severely. For example: The disease is more common in African Americans than European Americans.