The Cross-Section Trichometer: A Device for Measuring Hair Quantity, Loss, and Growth

    July 2008 in “ Dermatologic Surgery ”
    Bernard Cohen
    Image of study
    TLDR The Cross-section Trichometer is a promising tool for measuring hair characteristics without cutting the hair and may have various clinical uses.
    In 2008, Dr. Bernard Cohen developed the Cross-section Trichometer, a device for measuring hair quantity, hair loss, and hair growth by assessing the cross-sectional area of hair bundles. The device was tested on hair and surgical silk fibers, showing a direct correlation between the cross-sectional area and various parameters such as the number of filaments, filament diameter, and dry weight. A study involving 12 male balding patients found a correlation between the trichometric index (TI) and the severity of hair loss. The trichometer, which requires no physician supervision and is used on uncut hair longer than 1 inch, was found to be a promising tool for measuring hair mass, diameter, and density, with the potential for various clinical applications. However, the study highlighted the need for formal clinical studies and careful sampling methods to ensure accuracy and reproducibility. Dr. Cohen holds patents on the method and device.
    Discuss this study in the Community →

    Research cited in this study

    2 / 2 results

    Related Community Posts Join

    6 / 248 results

      community Petition Alert: Let's Get PP405 Phase 3 Trials in Germany by 2026!

      in Research/Science  57 upvotes 4 months ago
      A user is advocating for Phase 3 trials of the hair loss treatment PP405 to be conducted in Germany, citing benefits like a diverse patient base and faster access for European patients. Despite skepticism about the petition's influence, the user believes it can demonstrate significant interest and potentially influence strategic decisions.

      community Is Finasteride the only way to reduce scalp DHT?

      in Chat  26 upvotes 2 weeks ago
      A 24-year-old male experienced side effects like low libido and ED after starting finasteride post-hair transplant and is seeking alternatives to reduce scalp DHT. Suggestions include topical finasteride, Xpecia, DHT-reducing shampoos, and switching to dutasteride, with some users reporting fewer side effects with these alternatives.

      community FYI you can't donate blood when on fin/dut

      in Finasteride/Dutasteride  268 upvotes 2 months ago
      People on finasteride or dutasteride cannot donate blood due to the risk of birth defects if the blood is given to a pregnant woman. It's advised to stop finasteride for a month and dutasteride for six months before donating.

      community 3 month progress | Minoxidil once a day

      in Progress Pictures  190 upvotes 10 months ago
      The user experienced severe side effects from finasteride and switched to using minoxidil and a derma stamp, seeing positive hair regrowth after initial shedding. They are considering topical finasteride to avoid side effects while maintaining hair health.

      community Comprehensive Microneedling Guide

      in Microneedling  287 upvotes 3 years ago
      Microneedling for hair restoration involves daily use of a 0.3 mm device and weekly use of a 0.5 mm device. Combining microneedling with Minoxidil can enhance hair growth.

    Related Research

    1 / 1 results