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Background: Photobiomodulation therapy (PBMT) appears to be safe and effective for hair loss. Pulsed electromagnetic field therapy (PEMF) also has a positive biological effect on hair re‐growth. Objectives: We evaluated the efficacy and safety of both PBMT and PEMF for the treatment of androgenetic alopecia (AGA). Materials and Methods: This study was a 24‐week, randomized, double‐blind, sham device‐controlled trial. We recruited 80 subjects with androgenetic alopecia. The subjects got treatment every week for the 1st 12 weeks, every other week for the next 8 weeks. PBMT entails 15‐min therapy, and PEMF was carried out for 10 min. Results: The baseline hair density was 114.57 (±28.75)/cm2 and 113.31 (±30.07)/cm2 in both treatment and control groups. After 24 weeks of treatment, the mean hair density increased to 139.37 (±31.4)/cm2 in the treatment group but only to 119.78 (±31.92)/cm2 in the control group. The difference between two groups was statistically significant (p < 0.05). Based on the global assessment of independent experts, the score was 0.41 (±0.62) in the treatment group and 0.07 (±0.45) in the control group. Only very mild erythema or irritation was reported, and no serious adverse reactions were reported. Conclusions: A combination of PBMT and PEMF is a valid and safe treatment option for AGA. [ABSTRACT FROM AUTHOR]

The article presents a case study of a 38-year-old man who had developed hair transplantation-induced trichorrhexis nodosa. The man had demonstrated Norwood-Hamilton Class IVa male pattern baldness during hair transplantation in 2008. Histopathological test of scalp biopsy revealed a fibrous tract around the transplanted follicle. The article discusses how trichorrhexis nodosa develops and the causes of it.

The article presents a case study of a 22-year-old woman with history of hair loss for three years on her left temporal scalp. It states that the patient was diagnosed with temporal triangular alopecia (TTA) and undergo hair transplantation. It mentions that using Kyungpook National University (KNU) hair transplanter, 987 follicular units were transplanted.