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    GlossaryHair Density (hair number)

    number of hair follicles per square inch of scalp

    Hair density refers to the number of individual hair strands per square inch (or square centimeter) of the scalp. It is an important factor in determining the overall appearance of hair volume and can vary significantly from person to person. High hair density means more hair follicles are packed closely together, while low hair density indicates fewer follicles in the same area. This term is crucial in fields like dermatology and trichology for diagnosing hair loss conditions and planning treatments such as hair transplants.

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