After entering the spring, many children often have pain in their knees, ankles, shins and femurs due to excessive growth. Experts say that children’s leg pain in the spring is mostly growth pain. Experts said that the child’s growth generally exists in three peak periods, generally around 1 year old, 5 years old -7 years old, 11 years old -13 years old, especially from 5 years old to 13 years old due to rapid growth, sometimes nutritional imbalance or nutritional deficiencies, after a day’s life there will be “leg pain! The situation of “leg pain” appears, this pain appears in the knee, ankle, tibia, femur, with pins and needles pain, soreness and other discomfort, and will recur. It is understood that, because many children in the winter cover tight, accept ultraviolet radiation less, easy to lack of vitamin D. Into the spring, the child’s growth and development accelerated, the need for more vitamin D. Experts recommend that parents let their children in the spring more sun, appropriate control of the intensity of the activities, and eat more rich in vitamin D and calcium, phosphorus food, such as milk, small fish and shrimp, cod liver oil.