OK my 7 month old has been standing (when we pick her up and hold her arms) on her tip toes ever since I can remember. Sometimes when she is in her jumper she will keep her feet flat on the floor - but my goodness -
she is a large baby (almost 28" and 20lbs. 11oz.) and I wonder if she is going to break her little toes sometimes!!
When do babies switch from being on tippy toes to going flat footed on a regular basis?
when they start trying to pull up or to walk.
my first son even did it from time to time for several months after he started walking. i think it is something they think is neat to do. but if you are really concerned or she continues to do it when she is learning to walk, then you should talk to your dr.