Infants three months head still can not lift may be normal, may also be pathological factors, need to be analyzed according to the baby’s specific situation, timely treatment. 1. Normal situation The baby due to lack of exercise, head size and other factors resulting in poor head lifting, is also normal, the baby muscle strength and muscle tone is normal, you can improve the baby’s ability to lift the head through training. 2.Pathological factors (1) Rickets: due to vitamin D deficiency, babies may have poor head lifting and need vitamin D supplementation to improve the symptoms. (2) Malnutrition: besides not being able to hold up the head, babies are also accompanied by symptoms such as lack of weight gain and growth retardation, which need timely supplementation of protein and other nutrients to improve. (3) Cerebral palsy: children with cerebral palsy may have movement disorders, mostly accompanied by a history of brain injury, and need to go to the pediatrician in the hospital in a timely manner to clarify the cause of the disease and give rehabilitation and other symptomatic treatment. Infants three months head still can not lift up should be judged under the guidance of a doctor, if necessary, standardized treatment.