Skull flattening occurs in about ten to twenty percent of all babies in the first weeks and months of life. About 90 percent of the head asymmetries found in babies six weeks or later are due to positioning.
You can create incentives for your baby so that your child turns to the unaffected side (for example with light, toys, or side food.) Carrying your baby during the day also helps and, when your baby is awake, you can supervise your child on the tummy. This strengthens the muscles and also encourages you to lift the head.