Alopecia Areata: Symptoms, Causes, Treatment & Regrowth
网页Alopecia areata is an autoimmune disease that causes patchy hair loss anywhere on your body, but it most commonly affects the hair on the skin that covers your head (scalp). “Alopecia” is a medical term for hair loss or baldness, and “areata” means that it occurs in small, random areas.
Alopecia areata - Wikipedia
网页In alopecia areata, a hair follicle is attacked by the immune system. T-cells swarm the roots, killing the follicle. This causes the hair to fall out and parts of the head to become bald. Alopecia areata is thought to be a systemic autoimmune disorder in which the body attacks its own anagen hair follicles and suppresses or stops hair growth. [22]
Alopecia Areata - Hair loss Causes & Living With It | NIAMS
网页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 from any part of the body, alopecia areata usually affects the head and face.
Alopecia Areata: Causes, Diagnosis, and Treatment - DermNet
网页Alopecia areata is an autoimmune condition affecting hair follicles causing hair loss. It typically presents with discrete bald patches on the scalp but can cause hair loss from all hair-bearing areas on the body. Alopecia is a Latin term meaning hair loss, and areata refers to the patchy nature of the hair loss.
Alopecia areata: Management - UpToDate
网页2023年11月2日 · Alopecia areata is a chronic, relapsing, immune-mediated, inflammatory disorder that affects hair follicles and results in nonscarring hair loss. The severity of the disorder ranges from small patches of alopecia on any hair-bearing area to the complete loss of scalp, eyebrow, eyelash, and body hair (picture 1A-J).
Hair loss types: Alopecia areata overview - American Academy of Dermatology
网页Alopecia areata is a disease that causes hair loss. Most people lose hair on their scalp or beard area, but hair loss can occur anywhere on your body. A board-certified dermatologist can tell you if you have this type of hair loss and what may help you regrow your hair.
Alopecia Areata > Fact Sheets - Yale Medicine
网页Alopecia areata is an autoimmune disease that affects about two out of 100 people, causing hair loss that may come and go over a patient’s lifetime—or the hair loss may be constant. In patients with alopecia areata, immune cells attack hair …
What is alopecia areata and how is it managed? - Harvard Health
网页2022年4月28日 · Alopecia areata (AA) occurs when the body's immune system attacks hair follicles, resulting in hair loss. AA can affect the scalp, eyebrows, eyelashes, or anywhere hair grows on the body. What causes alopecia areata? The immune system protects the body against foreign invaders like bacteria or allergens.
Alopecia Areata Basics: Overview, Symptoms, and Causes
网页Alopecia areata causes hair loss, usually on the head and face. The disease is different for each person—some people’s hair grows back fully, while it does not in others. There is no cure for alopecia areata, but there are treatments that help hair grow back more quickly.
Alopecia Areata: Diagnosis, Treatment, and Steps to Take
网页Alopecia areata causes hair loss, mostly in small, round patches. Learn more about the causes & how to cope with hair loss.