Vellus hair

The vellus hair, even hair or intermediary called intermediate hair, called lanugo that with an average thickness of 0.07 mm, the first time in humans occurs in childhood. It replaced from the 6th month of life, the lanugo. It is relatively short, thin, and only has very little pigmentation, therefore it is colorless to pale blonde in most people. Vellus hair growing on the entire surface of the body except the strips on hand skin and Fußinnenflächen and the lips and of the nipples. From the vellus forms in the course of later development partly the terminal hair that pigmented stronger, thicker, and is myelinated. At puberty in women are about 45 percent, whereas in men converted 90 percent of Vellushaars in terminal hair. The conversion is brought about by androgens. This process begins in the axillary and genital region and extends in the adult male depending on the predisposition on the chest, abdomen, back, extremities and face.