Lanugo hair

Fine, soft, downy hair that covers a fetus. Lanugo hair first appears in the 4th or 5th month of gestation and usually disappears by the 9th month. It can still be seen in some premature babies. Lanugo hair sometimes reappears in adults who have cancer. It may also occur in those with anorexia nervosa or be a side effect of certain drugs, especially ciclosporin.


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