Telogen effluvium. New concepts and review

Scalp hair diameter increases during pregnancy

“…Although it has been stated that this must be correlated with diameter changes 6 these have not been demonstrated to date. Increasing proportions of thick fibres may also occur by modulation of particular follicular cycle phase‐durations without involving diameter changes, which have usually been ascribed to hair changes in pregnancy 9–11 . The increased hair diameters during pregnancy found here obviously support the expectation of Pecoraro et al.…”

“…Increasing proportions of thick fibres may also occur by modulation of particular follicular cycle phase-durations without involving diameter changes, which have usually been ascribed to hair changes in pregnancy. [9][10][11] The increased hair diameters during pregnancy found here obviously support the expectation of Pecoraro et al but not necessarily by the intended mechanism. Since they occur in the same fibres, they imply orderly transitions from small, to medium, to thick hair, and therefore they do not obviously explain the decreasing proportions of both medium and thin hair described previously.…”

Etiology, management, and outcomes of pediatric telogen effluvium: A single‐center study in the United States

“…Overall 67% of patients (51/76) had an identified trigger between clinical and laboratory evaluation, corresponding with previous literature estimates of two‐thirds of TE cases arising from a known cause 14 . Common triggers included emotional stress and acute febrile illness, supporting observations from other pediatric and adult TE studies 2,15 .…”

“…Overall 67% of patients (51/76) had an identified trigger between clinical and laboratory evaluation, corresponding with previous literature estimates of two-thirds of TE cases arising from a known cause. 14 Common triggers included emotional stress and acute febrile illness, supporting observations from other pediatric and adult TE studies. 2,15 For patients who experienced fevers, average hair loss onset began two months after a febrile episode, which follows the expected timeframe of acute TE occurring 2-4 months after a triggering event.…”

The Association of Serum Ferritin Levels With Non-scarring Alopecia in Women

“…A study by White et al [ 15 ] also observed huge similarities with our study when comparing ferritin levels in patients with alopecia areata. A positive correlation between serum ferritin and alopecia was also found in studies by Kantor et al [ 16 ] and Headington [ 17 ].…”