Large hair loss may be caused by resting alopecia, spot baldness, androgenetic alopecia, etc.
1. Resting hair loss: resting hair loss is a common non-scarring hair loss associated with major diseases, childbirth, iron deficiency anemia, etc. During resting hair loss, the growth cycle of the hair changes, and more scalp follicles enter into the resting phase, which leads to a large area of diffuse alopecia, and thus extensive hair loss can occur.
2. Patch baldness: Patch baldness is a non-scarring hair loss disease that may be caused by autoimmune, genetic and other factors, and is typically characterized by the sudden appearance of round or oval, 1~10cm diameter hair loss area, i.e., extensive hair loss.
3. Androgenetic alopecia: androgenetic alopecia is a hereditary disease, androgen metabolite dihydrotestosterone is one of the important mechanisms leading to the onset of the disease, the patient’s main manifestation is the follicle miniaturization and progressive reduction of hair, and in severe cases, there will be a large area of hair loss.
Large hair loss can also be caused by other reasons, it is recommended to go to the hospital in time to identify the cause of the disease and carry out targeted treatment.