It is important to take your baby to the hospital for a checkup to see if circumcision and foreskin buildup exist. From the point of view of the psychological development of children, at the age of 1 to 3 years, the child’s needs have shifted from the oral to the anal period, and then to the genital area. All forms of generalized stimulation of the external genitalia can have pleasure appear. However, young children’s attitudes toward sex are completely different from those of adults; for example, playing with the “penis” is an unconscious act of the child. This action of young children is from curiosity, but also a manifestation of knowledge, parents should treat and guide correctly. As the child grows older, the child’s contact with the outside world increases, and the activity surface increases, the phenomenon of playing with the “penis” will be naturally reduced or eliminated. So parents do not have to be too nervous. Usually, choose looser pants for the child to reduce the local stimulation.