Alopecia areata (AA) is autoimmune. nonscaring. multifocal disorder of hair growth characterized by circular bald areas which occur on any hair bearing site of the body. The exact cause of AA remain unknown. https://www.roneverhart.com/HP-15-fc0093dx-15-6-FHD-Laptop-AMD-Ryzen-5-7520U-2-8-GHz-AMD-Radeon-16GB-LPDDR5-256GB-SSD-Windows-11-Home-S-8F1A6UA/