Plagiocephaly

Plagiocephaly, also known as flat head syndrome, is a medical condition characterized by an asymmetrical flattening of the skull.

Causes

The most common cause of plagiocephaly is positional molding, which occurs when a baby's head is consistently in the same position, putting pressure on one side of the skull. This can happen due to:

  • Prolonged time spent sleeping on their back or side
  • Preferential head turning, where a baby tends to turn their head to one side more than the other
  • Torticollis, a condition that causes the neck muscles to tighten, leading to limited range of motion and preferential head turning

Symptoms

The symptoms of plagiocephaly may include:

  • Asymmetrical skull shape, with one side being flatter than the other
  • Uneven facial features, such as one ear being higher or more forward than the other
  • Difficulty turning the head to one side due to tight neck muscles (torticollis)

Diagnosis

Plagiocephaly is typically diagnosed through a physical examination by a healthcare professional. The doctor may:

  • Observe the shape of the baby's skull and facial features
  • Check for any limitations in head movement or neck range of motion
  • Take measurements of the skull to assess the degree of asymmetry

Treatment

Treatment for plagiocephaly depends on the severity of the condition and the age of the child. Options may include:

  • Repositioning techniques, such as changing the baby's sleep position or using a wedge pillow to encourage even head movement
  • Physical therapy to stretch and strengthen the neck muscles (torticollis)
  • Helmet therapy, which involves wearing a custom-made helmet to gently mold the skull into a more symmetrical shape
  • Surgery, in severe cases where the condition is causing significant facial asymmetry or other complications

Prevention

To reduce the risk of plagiocephaly, parents can take the following steps:

  • Provide tummy time for their baby, to strengthen neck muscles and encourage even head movement
  • Avoid prolonged periods in car seats or other devices that can cause pressure on one side of the skull
  • Alternate the direction of their baby's head while sleeping, to prevent preferential head turning

Prognosis

The prognosis for plagiocephaly is generally good, especially with early diagnosis and treatment. Most children with mild cases can achieve significant improvement with repositioning techniques and physical therapy. More severe cases may require helmet therapy or surgery, but with proper treatment, the condition can be effectively managed.

Frequently Asked Questions (FAQs)

What is Plagiocephaly?
A condition characterized by an asymmetric shape of the skull.

What causes Plagiocephaly?
Typically caused by a combination of genetic and environmental factors, including prenatal positioning and postnatal sleeping position.

Is Plagiocephaly the same as craniosynostosis?
No, they are distinct conditions, although they can sometimes occur together.

Can Plagiocephaly be prevented?
Possibly, by alternating sleep positions and providing tummy time when awake.

What are the symptoms of Plagiocephaly?
Asymmetric skull shape, flattening on one side, and potentially uneven facial features.

How is Plagiocephaly diagnosed?
Through physical examination and possibly imaging studies such as X-rays or CT scans.

What are the treatment options for Plagiocephaly?
May include helmet therapy, physical therapy, or in some cases, surgery.

Is Plagiocephaly associated with developmental delays?
Possibly, although the relationship is not fully understood and may depend on individual circumstances.

Can adults develop Plagiocephaly?
Typically, it is diagnosed in infants, but it may persist into adulthood if left untreated.

Does Plagiocephaly affect cognitive function?
The impact on cognitive function is unclear and may vary depending on the severity of the condition and individual factors.

Article last updated on: 18th October 2025.
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