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Part of 100+ Q&A about legs. See all.

Why do we have hair on our legs?

The real action of leg hair takes place below the skin or the epidermis. The cells that are in the hair follicles divide and multiply. When the space fills up in the follicle it pushes older cells out and that is what becomes the leg hair. After the older cells become hard and leave the follicle, they form a hair shaft. The hair shaft is mostly made up of dead tissue and a protein that is known as keratin. It is said that hair growth occurs during the “growing” phase of the follicle, and then retained as dead club hair during the “resting” phase. The old club hair might be lost within the following “growing” phase.

Modern men generally have more body hair than women, due to higher levels of androgens. Three different types of hair are present on the human body. Body hair, or androgenic hair, is the terminal hair that develops on the human body during and after puberty. It is differentiated from the head hair and less visible vellus hair, which is much finer and lighter in color. The growth of androgenic hair is related to the level of androgens and the density of androgen receptors in the dermal papillae. Both must reach a threshold for the proliferation of hair follicle cells.

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