Two-year-old baby sleep not solid old flip around may be physiological factors, but also may be the manifestation of obvious disease symptoms, such as nutritional element deficiencies, other disease factors and so on. 1. Physiological factors: when the night sleep is not good, especially when the temperature is too high, too noisy and the environment is closed, too bright lights. It is easy to affect the quality of sleep at night, so that the two-year-old baby sleep is not solid old rolling over and over the situation. 2. Pathological factors: (1) Nutritional element deficiency: may be the child lack of vitamin D or lack of calcium, resulting in increased excitability of the cerebral cortex, there will be a two-year-old baby sleep is not solid old flip around. (2) other disease factors: some children may be in a period of illness, such as with fever, cough, nasal congestion, or with vomiting, diarrhea. In this case, due to physical discomfort, sleep will also appear two-year-old baby sleep not solid old flip around. In addition to the above factors, it cannot be ruled out that it is caused by other factors. It is recommended that the patient go to the hospital as soon as possible for examination, and after the doctor clarifies the cause of the disease, targeted treatment will be given.