It is a parent’s greatest wish that their child grows up healthy, but the appearance of pediatric thrush can make that wish come to naught. Although pediatric thrush is curable, it is heartbreaking for parents to see their children crying in pain and unable to eat normally. Thrush is a common clinical disease in pediatrics and is caused by Candida albicans. The main factors that cause it are: a. Parents do not pay attention to cleanliness when breastfeeding, carelessly do not sterilize bottles and pacifiers, and when breastfeeding, the mother’s nipples are not clean. Second, the mother carries germs, does not do a good job in prenatal examination, the mother’s vagina is infected with mycobacteria and the child is infected when passing through the birth canal. Third, cross-infection, there is physical contact between the child and the affected child and cause cross-infection, especially easy to happen in kindergarten. Four, contact with food, clothing and toys infected with Candida, children in the process of teething, like to bite fingers, bite toys, if the fingers and toys on the bacteria, mold, it is easy to therefore enter the mouth caused by thrush. Fifth, long-term use of antibiotics, or inappropriate application of hormone therapy, resulting in imbalance in the body flora, mycobacterial infection. Sixth, the body’s resistance is too weak, the newborn baby’s oral mucosa is delicate, resistance is weak, a little rubbing, will allow the germs to take advantage of the baby’s wound and invade the secondary infection. Seven, with bacterial health care workers or substandard sanitary conditions of the nursery, may cause the baby infected with pathogenic bacteria. Eight, the family lacks nursing experience, neglecting the cleaning and disinfection of baby products. Toys, towels, bottles, pacifiers, diapers ……, which are in close contact with babies all the time, may become a source of transmission of germs if timely cleaning and disinfection are not done. These are the most common causes of pediatric thrush, but of course there are other factors that can easily cause pediatric thrush as well. It is important to take care of your child with care and attention.