The AA subtype also contributes to the prognosis: the risk of progression from limited alopecia areata to complete scalp hair loss (alopecia totalis) or whole-body hair loss (alopecia universalis) is approximately 5% to 10%. Regrowth is most likely to occur in patients with milder hair loss. The natural course of AA is unpredictable however, most people with AA achieve hair regrowth within a few years. What is the prognosis for alopecia areata? People with AA have an increased risk for anxiety, depression, and obsessive-compulsive disorder. Blood tests for thyroid dysfunction are often done to rule out thyroid conditions that affect hair loss.ĪA frequently causes psychological and emotional distress and can negatively impact people's self-esteem. Nail changes are found in approximately 10% to 20% of patients, and may occur more commonly in children or those with severe cases.īecause AA is an autoimmune condition, it is not surprising that it may be associated with other immune-driven conditions such as vitiligo, autoimmune hemolytic anemia, celiac disease, lupus, allergic rhinitis, asthma, atopic dermatitis, and thyroid diseases. If it's not clear that AA is the cause of hair loss, the doctor make take a scalp biopsy (removal of a small amount of skin) to help get a clearer diagnosis. The diagnosis is often made through an examination by a doctor (usually a dermatologist), and may involve use a of a dermoscope (skin surface microscope) to help. Rarely, this can progress to a complete absence of body and scalp hair, including eyebrows and eyelashes. What does alopecia areata look like?ĪA usually starts as a sudden appearance of small, round patches of hair loss without redness or scarring. Most people who develop AA are younger than 30, but AA can occur at any age. ![]() It is one of the most common hair loss disorders. The exact trigger for this immune response is unknown, although environmental factors, genetics, and stress may all play a role.ĪA affects patients of all ethnicities and genders. ![]() When the immune system isn't working as it should, it can attack hair follicle cells, making them prematurely enter their "resting" phase (called telogen), stopping hair growth. ![]() The immune system protects the body against foreign invaders like bacteria or allergens. AA can affect the scalp, eyebrows, eyelashes, or anywhere hair grows on the body. Hair loss is a common problem for many men and women, and most people will experience some type of hair loss during their lifetimes.Īlopecia areata (AA) occurs when the body's immune system attacks hair follicles, resulting in hair loss. But what does it mean to have alopecia? Alopecia is a catch-all term that encompasses all types of hair loss.
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