Lanugo hair refers to which type of hair?

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Multiple Choice

Lanugo hair refers to which type of hair?

Lanugo hair is the fine, downy, unpigmented hair that covers a fetus in the womb. It is exceptionally soft and hairlike, but it’s much thinner and lighter than typical postnatal hair. Typically, this fetal hair is shed before birth and the skin becomes covered with other types of hair—vellus hair, which is fine and pale, or terminal hair in areas that will develop thicker hair later. The key distinction is that lanugo is a fetal form of hair, not the lightweight vellus hair or the thicker, pigmented terminal hair seen after puberty. This is why lanugo is described as the fetal down hair rather than any postnatal hair type.

Lanugo hair is the fine, downy, unpigmented hair that covers a fetus in the womb. It is exceptionally soft and hairlike, but it’s much thinner and lighter than typical postnatal hair. Typically, this fetal hair is shed before birth and the skin becomes covered with other types of hair—vellus hair, which is fine and pale, or terminal hair in areas that will develop thicker hair later. The key distinction is that lanugo is a fetal form of hair, not the lightweight vellus hair or the thicker, pigmented terminal hair seen after puberty. This is why lanugo is described as the fetal down hair rather than any postnatal hair type.

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