Question
Why do children around three months old only start to form the cervical physiological curvature, and why does it lead to the condition where their legs and feet don’t bear weight?
Answer
I’m glad to assist you. Normally, children around three months old start to form the cervical physiological curvature, at which point neck movement actions can be observed; by six months, they can independently sit up and roll over. Around twelve months of age, they form the lumbar physiological curvature, allowing them to stand and walk independently. Since your child is only five months old, it’s best not to force them to stand at this age. The condition of legs and feet not bearing weight is normal at this stage.