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The man has patchy hair loss likely due to alopecia areata.

This study suggests that the patchy thickening and reddish discoloration in rabbit skin during the hair cycle may be due to large anagen-phase hair follicles compressing the dermis and increased blood vessels causing redness.

This study found that both red and green LED therapies combined with a microneedling patch significantly improved hair density and diameter in androgenetic alopecia patients over 24 weeks, with no serious side effects and similar efficacy between the two light wavelengths.

This study observed that non-scarring diffuse hair loss was common in systemic lupus erythematosus patients, but did not find a significant relationship with the SLE Disease Activity Index.

This review discusses the characteristics, potential genetic components, and treatment options for trichotillomania, a psychiatric condition that involves compulsive hair pulling, without reporting new clinical results.

In this study, researchers developed a novel bio-patch from decellularized freeze-dried tumor tissues and hair melanin nanoparticles, which demonstrated enhanced wound healing in vivo by reducing oxidative stress, suppressing inflammation, and promoting angiogenesis.

Focus on general hair care and lifestyle changes.

This study developed a minimally invasive cryo-microneedles array patch (cryo-MAP) technique for transplanting hair follicle organoids, showing successful hair growth and complex skin structure regeneration with over 86% success in 15 days, opening new possibilities in tissue engineering.

This case report suggests that regular use of antifungal shampoo might obscure clinical indicators of Trichophyton tonsurans tinea capitis in healthy adults, necessitating detailed diagnostic approaches like histopathology and dermoscopy.

This article discusses the etiology, clinical presentation, and current treatment options for alopecia areata and highlights new therapeutic modalities under investigation, but it reports no new research results.

This study found that treatment modalities and patch size influence hair regrowth patterns in alopecia areata patches.

In this case study, a previously healthy 7-year-old boy was treated with a combination of topical minoxidil, retinoic acid, and clobetasol for a rare presentation of linear alopecia areata, resulting in full hair regrowth one year later.

Using Indian marking nut sap for hair loss caused a skin rash on a woman's face.

This article reviews pediatric hair growth issues, common causes of hair loss in children, and approaches to diagnosis, but presents no new clinical findings.

This article reviews the epidemiology of desmoplastic melanoma and reports no new clinical findings, emphasizing higher risks in chronically sun-exposed older males.

This article discusses different types of hair loss, their potential causes, and treatment options, but it reports no new clinical findings; the authors emphasize the importance of considering the emotional impact on patients.

This case report describes a 5-year-old boy with a solitary patch of hair loss, indicating possible fungal involvement after initial antibiotic treatment was minimally effective.

This scoping review found that microneedle patches loaded with exosomes, primarily derived from mesenchymal stem cells, show promising potential for delivering exosome therapies to treat non-cicatricial alopecia, suggesting new directions for enhancing hair follicle regeneration.

This study reported that in animal studies of androgenetic alopecia, a biodegradable microneedle patch releasing glutamic acid promoted hair regeneration more effectively than daily minoxidil, with higher hair follicle counts and less frequent dosing, showing the potential for clinical application.

This review highlights the increasing use of trichoscopy, a noninvasive and well-tolerated diagnostic tool, to aid in the accurate diagnosis and management of various pediatric hair and scalp conditions, such as alopecia and other abnormalities.

This report suggests that in vitiligo, melanocytes may be destroyed by the same factors necessary for melanin production, contributing to the skin's depigmentation.

Hair extensions can cause hair loss and scalp damage, and these problems might be more common than people realize.

In this study, trichoscopic features aiding differential diagnosis of alopecia in Korean patients were found to be similar to those in Caucasians, but pigment pattern frequencies differed due to racial characteristics.

In this study, severe diffuse hair loss in patients with systemic lupus erythematosus was associated with distinct clinical, dermoscopic, and histopathological features, which improved alongside treatment of the underlying condition.

This study reviewed data from 2,896 hair transplant patients over 10 years, identifying sterile folliculitis, vasovagal shock, facial edema, and other minor complications, with no life-threatening issues reported. Detailed counseling and thorough medical history assessments are recommended to minimize risks.

Artificial dermis used for hair transplantation can reconstruct scalp defects effectively without the need for tissue expansion.

In this study, a 300 mcg daily testosterone patch significantly increased satisfying sexual episodes and sexual desire in postmenopausal women with hypoactive sexual desire disorder not receiving estrogen, compared to placebo.

This study tested a hydrogel microneedle patch delivering T reg attractants in mice with alopecia, finding it boosted regulatory T cell numbers at the site, leading to hair regrowth without causing peripheral immunosuppression, suggesting a potential new approach for autoimmune skin disease treatment.