Related Terms

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Background

• Alopecia describes hair loss, which may occur in men, women, or children. Hair loss may eventually lead to excessive hair loss, called baldness. Hair loss and baldness can occur for a number of different reasons.
• It is normal for some hair to fall out each day. It is estimated that adults lose 50-100 hairs each day because hair only lives two to six years. Once a hair is shed, a new hair grows to replace it. In general, hair grows about one-half inch each month. Hair growth may be less noticeable in patients with curly hair. As individuals age, most people experience hair thinning or loss.
• There are two main types of hair loss: alopecia areata and androgenetica alopecia.
• Alopecia areata is an immune system disorder. Normally, the immune system helps protect the body against disease and infection. However, the immune system in patients with alopecia areata mistakes the openings in the skin where hair grows, called hair follicles, as harmful invaders. As a result, the immune system launches an attack against the hair follicles, causing hair loss.
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Causes

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Signs and Symptoms

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Complications

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Diagnosis

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Treatment

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Integrative Therapies

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Prevention

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Author Information

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References

Natural Standard developed the above evidence-based information based on a thorough systematic review of the available scientific articles. For comprehensive information about alternative and complementary therapies on the professional level, go to www.naturalstandard.com. Selected references are listed below.

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