What is curly hair called?

Curly hair is a type of hair that has a natural wave or curl pattern. It is usually caused by a combination of genetic and environmental factors, such as the shape of the hair follicle, the amount of sebum produced by the scalp, and the porosity of the hair. Curly hair can be classified into different types according to the size and shape of the curls, such as loose curls, tight curls, and kinky curls.