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Pattern hair loss (also known as androgenetic alopecia (AGA) [1]) is a hair loss condition that primarily affects the top and front of the scalp. [ 2 ] [ 3 ] In male-pattern hair loss ( MPHL ), the hair loss typically presents itself as either a receding front hairline, loss of hair on the crown and vertex of the scalp, or a combination of both.
Alopecia universalis can occur at any age, and is currently believed to be an autoimmune disorder, in which a person's immune system attacks the hair follicles. Genetic factors may contribute to AU, as about 20% of those affected have a family member with alopecia. [3]
However, because organisms (including humans) can be carriers of genes for albinism without exhibiting any traits, albinistic offspring can be produced by two non-albinistic parents. Albinism usually occurs with equal frequency in both sexes. [10] An exception to this is ocular albinism, which it is passed on to offspring through X-linked ...
One particular medical cause of hair loss is called alopecia areata. This immune condition causes your body’s immune system to attack your hair follicles, resulting in rapid hair loss that ...
The little girl has alopecia, an auto-immune disease that causes her hair to fall out. According to the National Alopecia Areata Foundation , the disease affects nearly 6.6 million people in the ...
Temporary loss of hair can occur in areas where sebaceous cysts are present for considerable duration (normally one to several weeks). Congenital triangular alopecia – It is a triangular, or oval in some cases, shaped patch of hair loss in the temple area of the scalp that occurs mostly in young children. The affected area mainly contains ...
Alopecia totalis is a rare form of alopecia areata that causes widespread hair loss on your scalp, likely due to an autoimmune condition. How to Treat Telogen Effluvium Telogen effluvium is treatable.
Alopecia areata is believed to be an autoimmune disease resulting from a breach in the immune privilege of the hair follicles. [12] [13] Risk factors include a family history of the condition. [7] Among identical twins, if one is affected, the other has about a 50% chance of also being affected. [7]