Androgenetic alopecia

/Androgenetic alopecia
Androgenetic alopecia 2019-06-14T15:24:49+00:00

Type 1

Minimal or no recession of the hair line.

Type 2

Triangular, usually symmetrical, areas of recession at the front temporal hair line.

Type 3

In this presentation, the hair loss is primarily from the vertex (where the two sides of the hair meet in the middle of the scalp), with limited recession of the front temporal hair line that does not exceed the degree of recession seen in Type II.

Type 4

The front temporal recession is more severe than in type III. There is sparse hair or no hair on the vertex. The two areas of hair loss are separated by a band of moderately dense hair that extends across the top. This band connects with the fully haired fringe on the sides of the scalp. Type IV is distinguished from type III vertex in which the loss is primarily from the vertex.

Type 5

The vertex hair loss region is still separated from the front temporal region but it is wider and more distinct. The band of hair across the crown is narrower and sparser. The vertex and front temporal regions of hair loss are bigger. Viewed from above, Types V, VI, and VII are all characterized by surviving hair on the sides and back of the scalp forming a distinct horseshoe shape.

Type 6

The vertex hair loss region is even more separated from the front temporal region and becoming more distinct. Overall, hair is becoming thinner and sparser. The distinct horseshoe is growing larger, appearing more a monk’s tonsure.

Type 7

In this presentation, the hair loss is primarily from the vertex with limited recession of the front temporal hair line that now exceeds the degree of recession seen in Type III.

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