Alopecia Areata and Patchy Hair Loss
Alopecia areata is a condition characterized by the sudden occurrence of hair loss in circular or oval patches on the scalp or other areas of the body. This hair loss is caused by the immune system mistakenly attacking the hair follicles, resulting in their destruction and subsequent hair loss.
Causes for Alopecia Areata
Although the precise cause of alopecia areata remains unknown, it is believed to be influenced by a combination of genetic, environmental, and immune system factors. It is considered an autoimmune disorder, wherein the immune system incorrectly identifies the hair follicles as foreign entities and targets them for attack. Other factors like hormonal imbalances, certain viral or bacterial infections, and stress may contribute to the onset or exacerbation of the condition.