March 2025 in “Journal of Dermatological Treatment” In this case report, a patient required more local anesthetic than usual for hair transplant surgery, which the authors suggest may be due to cannabis use impacting pain sensitivity and anesthetic clearance.
November 2022 in “Journal of the Endocrine Society” This case study suggests that marijuana use may be associated with low TSH levels without causing thyroid dysfunction in humans.
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March 2023 in “Portuguese Journal of Dermatology and Venereology” This case report describes a 15-year-old girl with alopecia universalis who experienced scalp hair regrowth after self-medicating with cannabis, suggesting it may have potential as a treatment for autoimmune diseases like alopecia areata.
March 2022 in “Research Square (Research Square)” This case report describes a 15-year-old girl with Alopecia Universalis and psychiatric conditions experiencing hair regrowth after self-medicating with cannabis, suggesting it may have therapeutic potential.
In this simulation study, higher cannabis exposure was associated with increased hair shedding severity and reduced follicular density, with greater effects observed in female-assigned profiles, but these associations are based on modeled data and not clinical observations.