There are quite a lot of causes. The first reason is the performance of home cleaning without using gloves. Unfortunately, even the most modern detergents and cleaning products, in addition to their basic properties, have strong skin irritating skin. Under their influence, the skin of the hands dries, becomes rough, nail rollers become rough, and then crack, which leads to the appearance of burrs. Manual washing using modern washing powders leads to the same. Therefore, in order to avoid the appearance of burrs, it is necessary to use gloves when performing homework.