Localized Acquired Hypertrichosis on a Miner’s Shoulder: Case Report

    December 2025 in “ Pomeranian Journal of Life Sciences
    Wiktoria Moczarska
    Studysummary This case report describes a man who developed localized acquired hypertrichosis due to inflammation and local pressure from over 20 years of working in mining, finding no statistical difference in hair thickness between his shoulders.
    Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
    This case report discusses a miner who developed localized acquired hypertrichosis (LAH) on his shoulder due to inflammation and local pressure from over 20 years of mining work. LAH is typically caused by factors such as surgery, injections, or wearing a plaster cast, and it often resolves once the causative factor is removed. In this case, statistical analysis showed no significant difference in hair thickness between the miner's shoulders, and images of the hair were captured using a scanning electron microscope.
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