A bun is a type of hairstyle in which the hair is gathered and secured at the back of the head or on top of the head. It can be made from all of the hair on the head or just part of it. Buns are popular because they are easy to do and can be dressed up or down to suit any occasion.
There are many different types of buns, including the chignon, the French twist, and the ballerina bun. The type of bun you choose will depend on your hair type, the length of your hair, and the occasion.