Abdominal hair and its characteristics

Abdominal hair

The abdominal hair refers to the hair that grows on the abdomen of humans in the region between the pubic area and the chest. The growth of abdominal hair follows the pattern of vertically from the pubic area upwards and from the thorax downwards to the navel.

In men

Before puberty, the abdominal region of both males and females is covered with very fine vellus hair. In response to rising levels of androgens during and after puberty, the skin of the abdomen begins to produce coarser, longer and more pigmented hair . This process affects primarily men. Initially hair grows in a vertical line from the pubic area up to the navel and from the chest down to the navel. Abdominal hair often indicates young teen men stepping into adulthood.

In women

Some women may develop a small line of hair from the pubic area up to the navel. many women consider it as unattractive. Excessive abdominal hair on women is called hirsutism.


Patterns

There are four general patterns of pubic and abdominal hair including:

* Horizontal - Characterized by upper surface of pubic hair terminating in a
horizontal line with no hair extending to the abdomen.
* Sagittal - Resembles the first but with the addition of a narrow vertical band of
hair extending from the pubic hair towards the navel.
* Acuminate - Characterized by a tapered, inverted 'V' pattern extending upward from
the pubic hair. Upper limit may end below the navel, at the navel, above the navel or near
the chest.
* Disperse - Hair is distributed broadly over the abdomen without
forming a discrete geometric pattern.

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