Female infants with poor vulvar development, thin vaginal epithelium, low resistance, and poor resistance to infection are susceptible to bacterial infection and inflammation, which manifests itself as redness, swelling, pain, itching, and crying, and some of them may be accompanied by frequent urination, urinary urgency, and painful urination. The vulva and clitoris can be seen to be red and swollen, and the urethra and vaginal inlet are congested, edematous or broken. In order to prevent the phenomenon of redness, swelling and infection of the vulva of female infants, it is necessary to pay attention to hygiene, keep the vulva clean, reduce friction, maintain dryness, choose breathable, absorbent diapers, wash after defecation to prevent fecal infection of the vulva. Reduce the use of diapers, but also pay attention to the baby’s clothing and adult clothing should be washed separately, especially underwear, underwear, choose baby-specific laundry detergent, female infants with vulvar redness and swelling, can not be privately handled, not to mention the use of adult care solution, go to the hospital if necessary.