Which type of hair is influenced by androgens and is found on the face, chest, or abdomen?

The type of hair influenced by androgens that is found on the face, chest, or abdomen is terminal hair. This hair becomes more pronounced with hormonal changes, particularly in males where it develops in response to androgens during puberty and can continue to change in density and location throughout life.

Terminal hair is characterized by its thickness and pigmentation compared to other types of hair. It typically replaces vellus hair in certain areas of the body due to androgenic effects, which stimulate the growth of coarser hair in regions such as the beard area, chest, and abdomen.

While vellus hair is soft, fine hair found throughout the body, it does not have the same response to androgens and is not typically found in the same areas as terminal hair. Lanugo hair is fine, downy hair that covers the fetus in the womb, and sexual hair, although a term used to describe hair in areas influenced by sex hormones, is less specific and not commonly categorized in the same way as terminal and vellus hair in standard hair growth discussions.