Topic

Hair Loss

Hair loss (alopecia) refers to reduced or absent hair from the scalp or body, with several distinct underlying causes.

Timeline diagram of seasonal hair shedding: the proportion of resting telogen hairs peaks in summer, and shedding is inferred to rise two to three months later in early autumn before follicles re-enter growth.

Seasonal hair shedding: why it peaks in autumn

Hair shedding follows an annual rhythm that peaks in early autumn. What trichogram and search data show, how much is normal, and when to seek care.

Aug 13, 2026 · 6 min · Medically reviewed

MedicalDermatologyNews

Medical

Male pattern hair loss: treatment evidence in 2026

What the evidence supports for male androgenetic alopecia: minoxidil, finasteride and dutasteride, adjunct options, and realistic expectations on results and risks.

Jun 10, 2026 · 3 min · Medically reviewed

MedicalDermatologyNews

Medical

GLP-1 hair shedding: is it the drug or the weight loss?

Hair loss reported with semaglutide and tirzepatide: what the evidence shows about telogen effluvium, androgenetic alopecia, diagnosis, and recovery.

May 30, 2026 · 3 min · Medically reviewed