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

    March 2008 in “ Dermatologic Surgery ”
    Bernard Cohen
    Image of study
    TLDR The Cross-section Trichometer is a new tool that can measure hair quantity and detect hair loss and growth.
    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, which calculates the trichometric index (TI), showed a direct correlation between the cross-sectional area and the severity of hair loss in balding patients. It was tested on surgical silk fibers and hair from 12 male patients, demonstrating its ability to detect changes in hair diameter and density. The study concluded that the trichometer could be a refined method for measuring hair quantity, potentially useful for diagnosing changes in hair mass and for evaluating the efficacy of hair growth products. However, the accuracy of measurements could be affected by the sampling method, and further clinical studies were recommended to validate its use. Dr. Cohen holds patents for the method and device.
    Discuss this study in the Community →

    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 3 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  27 upvotes 1 week 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  290 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

    4 / 4 results