Infants lying on their backs legs will buckle up, may be in the normal phenomenon, there may also be with abnormal motor development, strong muscle tone and so on have a relationship.
1. Normal phenomenon: generally within three months of the baby lying down when the legs will be up is very common, this time the child’s leg strength is relatively strong, the baby is too small will not be able to control the body, lying down when the phenomenon of the legs will be up.
2. Abnormal motor development: the baby’s motor development is backward, there may be some abnormal movements, such as lying down with legs cocked up, lifting the head, turning over, doing up and other movements are also backward.
3. Strong muscle tone: there may be perinatal ischemia and hypoxia, craniocerebral injury may cause the baby strong muscle tone, appearing lying on the leg cocked up and other symptoms.
Babies lying on their backs and legs will buckle up may also be related to leg bone dysplasia, it is recommended to go to the hospital in a timely manner to improve the relevant examination to identify the cause of the treatment under the guidance of the doctor.