In terms of health, most of the left behind children in Liangshuijing village have great problems. In terms of clothing, there is no significant difference between left behind children and other non left behind children. But there is a big difference in the cleaning of clothes. The clothes of left behind children in rural areas are often dirty, even if they don't change for a long time, and the children's clothes have worn out. Due to the restrictions of rural conditions, many left behind children do not bathe for a long time in rural areas, or even do not wash their hair, or even full of wind. These undesirable phenomena are common in the left behind children in rural areas, which bring huge potential risks to the health of the left behind children in rural areas.