Walking on the toes or the ball of the foot — also known as toe walking — is fairly common in children who are just beginning to walk. Most children outgrow toe walking by age 2. Kids who continue "Toe Walking" beyond the toddler years often do so out of habit. This is known as idiopathic toe walking. As long as your child is growing and developing normally, "Toe Walking" on its own in early childhood isn't likely cause for concern.
It's important to keep an eye on other signs and symptoms, however. For example, toe walking accompanied by lack of muscle coordination could indicate cerebral palsy. "Toe Walking" may also be a sign of autism or other developmental disorders.