Children get hand, foot and mouth disease and lack of hygiene awareness, poor resistance, exposure to infectious sources and other factors, hand, foot and mouth disease is a contagious disease, mainly easy to appear in infants and young children under 5 years old, children in the small lack of awareness of hygiene, such as often like to bite nails, do not wash their hands before eating, licking toys, if there is a virus on the toy, it will enter the digestive tract through the human mouth, causing children If there is a virus on the toy, it will enter the digestive tract through the human mouth and cause the child to get sick. During infancy, the child’s body resistance is poor, and it is difficult for the body to resist viral invasion after contact with pathogens, so it can lead to hand, foot and mouth disease. In addition, if children are often in contact with patients who have HFMD around them or carry the germs, they may be infected. Therefore, to prevent HFMD, first of all, we should strengthen the body’s immunity, wash hands before and after meals, ventilate and disinfect the room, and try to avoid contact with patients who have infectious agents.