#asktheexperts my son is 9 months old. When I uphold him he stands on his toes. doesn't put his ankle. when I keep gap between both the legs then he keeps his foot on. but lifts up his right foot. Do I need to worry?? is there any problem in his knee?? or what?? Consulted my Paediatrics they say he will start standing with time. What should be done?? Should I take him for knee checkup??