This situation depends on the age of the child. If the child is still wearing diapers during this period, it may be because the diapers are not changed frequently and the scrotum is red due to humidity, which only needs to be kept clean and dry at this time, and can be treated with topical erythromycin cream. If the child is older and the scrotum is red and swollen, be alert to the presence of epididymitis, torsion of the testicular appendage, torsion of the epididymal appendage, etc. When the above situation occurs, go to the hospital for ultrasound examination as soon as possible to exclude torsion of the testicles. Is there any pain in the child? Generally, when there is torsion of the attachment or testicle, the child’s pain is more intense and must not be taken lightly because there is a possibility of necrosis soon.