Hair loss - Symptoms and causes - Mayo Clinic
网页2024年1月19日 · Hair loss (alopecia) can affect just your scalp or your entire body, and it can be temporary or permanent. It can be the result of heredity, hormonal changes, medical conditions or a normal part of aging. Anyone can lose hair on their head, but it's more common in men.
Alopecia Areata: Symptoms, Causes, Treatment & Regrowth
网页2023年8月30日 · Alopecia areata is an autoimmune disease that attacks your body’s hair follicles, causing patchy hair loss. Medications and therapies can help your hair regrow, though severe cases may not respond to treatment.
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: What It Is, Causes, Signs, and Treatment | Osmosis
网页2023年9月8日 · Alopecia (also known as alopecia areata) is a chronic, immune-mediated skin disease characterized by sudden loss of hair on the scalp, beard, and sometimes eyebrows, eyelashes, and body hair. It can also be described as bald spots or bald patches.
Hair Loss (Alopecia): Causes, Symptoms, and Regrowth Options
网页2022年11月29日 · Hair loss can look like thinning, patchiness, or baldness. Learn more about the possible causes of hair loss and what you can do to treat it.
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.
Alopecia Areata Basics: Overview, Symptoms, and Causes
网页Alopecia areata typically begins with sudden loss of round or oval patches of hair on the scalp, but any part of the body may be affected, such as the beard area in men, or the eyebrows or eyelashes. After a bare patch develops, several possible things may happen: The hair grows back within a few months.
Hair loss types: Alopecia areata causes - American Academy of …
网页2020年1月22日 · If you have alopecia areata, your immune system mistakenly attacks hair follicles (where hair grows) and sometimes your nails. Where you see hair loss, it means your immune system has attacked hair follicles.
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 Types, Causes, Symptoms, and Treatment - Healthline
网页2022年5月11日 · Anything that disrupts the natural, healthy hair growth cycle can lead to alopecia. Some types of alopecia can be avoided, but others can affect anyone at any age.