The upbringing and teaching of toilet skills to young children is an important stage in the physiological development of the child. Control over urination and defecation in infants develops gradually, starting with a completely reflexive process and moving on to conscious control. This process is of great importance in the formation of a healthy and independent personality, preparing the child for the next stages of growing up and acquiring new skills. The article presents historical aspects of the formation of toilet skills among different peoples and at different stages of society development. Interesting facts about potty training in different countries of the world, anatomical features of urination and defecation, signs of readiness for potty training and toilet training, the age recommended for potty training, and what a potty should be like are shown. Approaches to teaching this level of independence are important not only for the child’s physical health, but also for understanding his psychological readiness, social development, and adaptation in children’s groups.