Hair loss, or alopecia, is influenced by a variety of factors, including genetics, hormonal changes, medical conditions, and medications. The histological study of hair follicles reveals that the hair growth cycle includes anagen (growth phase), catagen (transitional phase), and telogen (resting phase). Disruptions in this cycle, due to factors like hormonal imbalances (e.g., androgens) or autoimmune conditions, can lead to hair loss.
