This is noticed most commonly during the second year of life after the child has started walking. This may be due to the position while in the uterus, or a positive family history. Usually this occurs more often in girls. Often, many children will have a little of 2 or 3 of these causes leading to their intoeing. Bowing of the legs may be associated with this.
Observation is the best treatment for out-toeing and intoeing.
You can take pictures of your child standing, at yearly intervals, and then compare the progression of the straightening process. Very rarely is another form of treatment necessary. Your child's intoeing is a common developmental condition. Many years ago, it was believed that these treatments helped correct intoeing, but years of studies have shown them NOT to be effective. Falling is a part of the learning to walk process and is not exclusively caused by intoeing.