Deborah, thanks for your question about your daughter. Between 1 and 2 years of age it's common for toddlers to walk on their toes. It could be a normal part of her learning to walk, which she should outgrow by the time she's 2 or 3. On the other hand, it could be a sign of other developmental, neurological, muscular or orthopedic conditions.
Since your daughter was born prematurely and has other physical and developmental differences, it's best to make sure she gets a thorough assessment by the pediatrician and developmental and orthopedic specialists. In addition to doing a full developmental and neurological assessment, they should pay special attention to your daughter's feet, ankles, legs, hips and spine as well as the way she stands and walks.
After the assessment, the doctors will determine whether you should wait to see if your daughter outgrows walking on her toes or whether early developmental intervention, physical therapy, casts, braces or surgery might be helpful.
Our parenting advice is given as suggestions only. We recommend you also consult your healthcare provider, and urge you to contact them immediately if your question is urgent or about a medical condition.