Eleven-month-old babies who cannot crawl nor stand are to be considered abnormal and may be related to factors such as cerebral palsy and congenital hip joint concurrent dislocation. Under normal circumstances, babies can already crawl at eleven months, and some babies are able to stand holding on to something even if they are not able to stand fully, therefore, eleven-month-old babies who can neither crawl nor stand may have an abnormality. Eleven-month-old babies who can neither crawl nor stand may be related to cerebral palsy, congenital hip dislocation and other factors, accompanied by muscle weakness, abnormal limb development and speech disorders. Therefore, after parents find that their children have the above abnormalities, it is recommended that they take their babies to the pediatrics department of the hospital as soon as possible for a detailed examination and treatment, so as to avoid delaying the condition and affecting the normal development of the baby’s body.