A wig is a head covering made from human hair, animal hair, or synthetic fibers. Wigs are often worn to change a person's hairstyle or to cover hair loss due to medical conditions, such as alopecia or chemotherapy. They come in various styles, colors, and lengths, allowing for versatility in appearance. Wigs have been used for centuries, dating back to ancient civilizations like Egypt and Greece. In modern times, they are popular in the fashion industry and among performers, such as actors and drag queens, who use them to create specific looks or characters.