Flat head syndrome is caused by tight neck muscles that make it hard for babies to turn their heads. This neck condition is called torticollis. Because it's hard to turn their head, babies tend to keep their heads in the same position when lying down. This can cause flattening.
Does baby flat head correct itself?
All Flat Heads Correct Over Time
In the case of positional moulding and deformities that occur during birth, these do often correct themselves throughout the early months of life. This can also be the case for babies who have developed a flat head after they are born.
How long does it take for a baby's head to flatten?
Flat head syndrome is most common between the ages of 6 weeks and 2 months old, and almost always resolve completely by age 2, particularly if parents and caregivers regularly work on varying baby's positions when he's awake.