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Men with hair loss have more DNA changes in back-of-head hair follicles, possibly protecting them from thinning.

Hair enzyme activity predicts minoxidil success in Brazilian women with hair loss.

Hair loss is caused by mechanical, thermal, and metabolic factors, not just hormones.

Hair loss is caused by mechanical, thermal, and metabolic stress, not just hormones.

Most nonbald men's multi-hair follicles are naturally positioned perpendicular to a line from the scalp's crown, which is important for natural-looking hair transplants.

People with pattern hair loss have higher polyamine levels in the top of their head compared to the back.

Lichen planopilaris is a chronic, scarring hair loss condition with no definitive cure, requiring accurate diagnosis and treatment to manage symptoms.

Androgenetic alopecia is a common hair loss condition caused by testosterone effects on hair follicles, leading to thinner, shorter, and less pigmented hair, diagnosed using scalp dermoscopy and treated with topical minoxidil, antiandrogen agents, and 5-alpha reductase inhibitors.

A man with hair loss developed a condition causing scarring and inflammation in both bald and non-bald areas of his scalp.

Men and women have different hairline restoration needs, with natural design being more complex for women, and hairline changes being important for transgender individuals' transitions.

Hypothyroidism patients with hair loss typically have thinning hair, smaller hair follicles, and normal hair shedding.

High-frequency ultrasound can effectively visualize and assess hair loss.

Hair loss in men (androgenetic alopecia) is significantly linked to decreased scalp sensitivity, but not temperature sensitivity. More research is needed to confirm this. Comparing this hair loss to leprosy is unsupported and stigmatizing.

Erosive pustular dermatosis of the scalp causes painful, scarring skin lesions on the scalp, mainly in elderly people with sun-damaged skin.

Congenital triangular alopecia is a harmless, non-spreading hair loss condition often seen in young children.

Hair transplantation is highly effective with careful technique and attention to patient needs.

A 60-year-old man with a long-term balding condition also developed a rare hair loss condition usually seen in postmenopausal women.

Zolpidem shows up in hair from the top back of the head after one dose and fades over time, suggesting it gets into hair through blood and sweat.

Female pattern hair loss shows similar characteristics in both genders and should be classified by hair loss patterns, not gender.

Female pattern hair loss is common, worsens with age, and requires long-term treatment to manage.

Botulinum toxin treatment improves hair follicle width and length in androgenetic alopecia.

Men's and women's pattern hair loss progress differently, with men showing more hair thinning and women having more widespread hair loss.

Congenital triangular alopecia can occur outside the typical fronto-temporal region.

Common latent viruses might contribute to male-pattern baldness by disrupting cell processes that normally suppress hair loss-related proteins.

Male hair loss is mainly due to thinner hair, not less hair.

About 21.3% of young, healthy Chinese men experience hair loss. Hairlines are mostly linear or have a central protrusion. Hair is densest on the top and back of the head, and hair follicles usually have 1 or 2 hairs. This information can help in designing hair restoration procedures.

Miniaturized hair follicles in androgenetic alopecia show abnormal mitochondrial activity and damage.

Most men's multi-hair follicles naturally stand perpendicular to a line from the top of their head, which is important for natural-looking hair transplants.

TGF-β1 and 2 may play a role in hair loss in AGA.