Types of Alopecia

Alopecia UK concentrates, though not exclusively, on alopecia areata, alopecia totalis and alopecia universalis, which are collectively used on this site under the term alopecia.

Alopecia Areata (AA)

Used to describe hair loss occurring in patches anywhere on the body.

Alopecia Totalis (AT)

Total loss of the hair on the scalp.

Alopecia Universalis (AU)

Total loss of all hair on the body.

Alopecia Barbae

Loss of facial hair (for a man) especially in the beard area.

Alopecia Mucinosa

A type of alopecia which results in scaley patches.

Androgenetic Alopecia (AGA)

Also known as male pattern baldness. It is a thinning of the hair to an almost transparent state, in both men or women. It is thought to be a hereditary form of hair loss.

Traction Alopecia

Traction alopecia is usually due to excessive pulling or tension on hair shafts as a result of certain hair styles. It is seen more often in women, particularly those of East Indian and Afro-Caribbean origin. Hair loss depends on the way the hair is being pulled. Prolonged traction alopecia can stop new hair follicles developing and lead to permanent hair loss.

Anagen Effluvium

This hair loss is generally caused by chemicals such as those used to treat cancer. Initially it causes patchy hair loss, which often then becomes total hair loss. The good news is that when you stop using these chemicals the hair normally grows back (usually about 6 months later). Other drugs also can cause hair loss. Many medicines used to treat even common diseases can cause hair loss.

Scarring Alopecia

A form of alopecia which leaves scarring on the area of hair loss.

Telogen Effluvium

A form of hair loss where more than normal amounts of hair fall out. There is a general 'thinning' of the hair. Unlike some other hair and scalp conditions, it is temporary and the hair growth usually recovers.