Red scrotum in infants is commonly seen in the following two problems: First, scrotal emergencies: including testicular torsion, testicular epididymitis, adnexal torsion and other manifestations, in addition to the redness of the scrotum, there is also obvious tenderness. Testicular transverse position to maintain high or local touch red, hot, inflammation, this situation should be emergency consultation in pediatric urology, do the ultrasound of the scrotum to determine the condition, decide the next step in the treatment plan. Second, scrotal skin eczema: also known as diaper rash, usually and baby diaper quality is not good, change time interval is too long, mother care is not good. It is recommended to apply a mixture of zinc oxide and Denadyl cream to the scrotal skin. The dosage can be prescribed by a dermatologist, and relief can usually be obtained in 3-4 days.