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A 5-year-old girl has sparse, dry, and brittle hair but is otherwise healthy.
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December 2025 in “Cureus” Alopecia areata and psoriasis vulgaris can inhibit each other in the same areas.
January 2016 in “Journal of The American Academy of Dermatology” The woman has a type of scarring hair loss with red bumps around hair follicles.
July 2023 in “Clinical, cosmetic and investigational dermatology” Plica neuropathica can be a sign of schizophrenia and improves with antipsychotic treatment.
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January 2014 in “Indian journal of dermatology, venereology, and leprology” Papular mucinosis can cause eyebrow hair loss, but treatment can lead to regrowth.
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February 2026 in “JEADV Clinical Practice” Lichen planopilaris can cause hair loss on limbs, not just the scalp.
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August 2014 in “Veterinary Dermatology” Sphynx cats have abnormal hair follicles and keratinization affecting their skin.
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April 2009 in “Cell Biology International” Hair follicle stem cells can become corneal-like cells with the help of pax6.