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How to undo a flat head in infants: a comprehensive guide

4 min read

Since the "Back to Sleep" campaign began, the incidence of SIDS has decreased significantly, but there has been a corresponding increase in positional plagiocephaly, or "flat head syndrome". This condition, which results from a baby spending too much time in one position, can be managed effectively with early intervention and proper techniques.

Quick Summary

Correcting a flat head in infants involves consistent repositioning, plenty of supervised tummy time, and limiting time in carriers to relieve pressure on the skull. Severe cases may require physical therapy or a cranial helmet, but early intervention with conservative methods is highly effective.

Key Points

  • Start Repositioning Early: Consistently alternate your baby's head position during sleep and while awake to reduce pressure on one spot.

  • Embrace Tummy Time: Provide plenty of supervised tummy time daily to strengthen neck muscles and relieve pressure on the back of the head.

  • Limit "Container" Use: Reduce the amount of time your baby spends lying flat on their back in car seats, swings, and other carriers.

  • Consider Physical Therapy: If a tight neck muscle (torticollis) is present, a physical therapist can provide specific stretches and exercises.

  • Consult a Doctor for Severe Cases: For moderate to severe flattening that doesn't improve with repositioning, a doctor may recommend a cranial helmet.

  • Be Patient: In many cases, head shape improves naturally as your baby grows and develops more mobility.

  • Prioritize Safe Sleep: Always place your baby on their back to sleep to reduce the risk of SIDS, even when concerned about head shape.

In This Article

What is a flat head (plagiocephaly)?

Plagiocephaly, also known as "flat head syndrome," is a common and treatable condition where a baby's soft skull becomes flattened in one area due to consistent pressure. Since an infant's skull bones are pliable and not yet fused, they can easily be molded by external forces. There are two main types of flat head syndrome:

  • Positional Plagiocephaly: This is the most common form, caused by external pressure on a baby's head, such as sleeping on the back or spending too much time in car seats and swings.
  • Craniosynostosis: A rare condition where the joints between the skull bones fuse prematurely. Unlike positional plagiocephaly, this can impact brain growth and usually requires surgery. A medical professional can accurately distinguish between the two.

Natural methods to undo a flat head

For most cases of positional plagiocephaly, conservative, non-invasive treatments are highly effective, especially when started early.

Maximize supervised tummy time

Tummy time is a crucial activity for strengthening a baby's neck, shoulder, and upper body muscles, which are all vital for developing head control. It also serves to alleviate pressure from the back of the head. Aim for several short sessions throughout the day, gradually increasing the duration as your baby grows stronger and more comfortable.

  • Begin early: Start tummy time shortly after birth with just a minute or two at a time.
  • Engage your baby: Use colorful toys, mirrors, or get down to your baby's eye level to make it an engaging and fun activity.
  • Vary the position: Place your baby tummy-to-tummy on your chest or on your lap to offer a different perspective and relieve pressure.

Master repositioning techniques

Actively changing your baby's head position is one of the most effective ways to encourage a rounder head shape. Think of it as counteracting the pressure on the flat spot throughout the day and night.

  • Switch sleep positions: Place your baby to sleep with their head at one end of the crib one night and the other end the next. This encourages them to turn their head in different directions to look out into the room.
  • Adjust feeding positions: If bottle-feeding, alternate the arm you hold your baby with. If breastfeeding, ensure you offer both breasts equally.
  • Change how you hold your baby: Make a conscious effort to hold your baby in different positions, such as carrying them upright against your shoulder.

Limit "container" time

Reducing the amount of time your baby spends in devices like car seats, swings, and bouncy seats is essential for correcting a flat head. These devices can put constant pressure on the back of the baby's head.

  • Opt for a baby wrap or carrier when practical to keep your baby upright and off their head.
  • Take your baby out of the car seat as soon as you arrive home, even if they have fallen asleep.

When professional help is needed

While many cases respond well to conservative methods, some infants may require professional intervention, especially if repositioning isn't enough or a neck muscle issue is present.

Physical therapy for torticollis

Many babies with plagiocephaly also have torticollis, a condition where tight neck muscles cause a head tilt and limit neck movement. A pediatric physical therapist can provide stretches and exercises to improve your baby's range of motion, which in turn helps with head shape.

Cranial remolding helmet therapy

For moderate to severe cases, particularly if conservative methods aren't showing improvement by around 4-6 months of age, a doctor might recommend a cranial remolding helmet.

  • How it works: A custom-made helmet applies gentle pressure to the rounder parts of the skull, redirecting growth to the flattened areas as the baby's head grows.
  • Duration: The helmet is typically worn for about 23 hours a day for several months, with regular adjustments by an orthotist.

Comparative table of treatment options

Feature Repositioning & Tummy Time Physical Therapy Cranial Remolding Helmet
Effectiveness Highly effective for mild cases, especially if started early. Addresses underlying neck muscle issues (torticollis) that contribute to flattening. Very effective for moderate to severe cases, can show quicker results.
Cost Free. Varies by provider and insurance coverage. Often expensive and may not be covered by insurance.
Age Range Most effective in newborns and young infants up to 4 months. Can be started as soon as torticollis is identified, early intervention is key. Generally for babies between 4 and 18 months, during a period of rapid head growth.
Level of Effort Requires consistent parental effort throughout the day and night. Requires parental commitment to a home exercise program taught by a therapist. Requires wearing the helmet almost full-time for several months, with regular clinic visits.
Potential Issues No known side effects, can be challenging to remember to reposition. No known side effects, exercises can be uncomfortable for baby initially. Potential for skin irritation and rashes, can be uncomfortable for some babies.

Conclusion: take a proactive approach

While a flat head can be alarming for new parents, positional plagiocephaly is a common and treatable condition. The most important takeaway is that early, consistent, and proactive measures are key to correcting a flat head. By maximizing tummy time, frequently repositioning your baby, and limiting time in carriers, you can significantly help their head round out naturally. If these conservative measures aren't showing results, or if you suspect a neck muscle issue, consult your pediatrician, who may refer you to a specialist for further evaluation and a tailored treatment plan. It's important to remember that these cosmetic issues rarely affect a baby's brain development, and early intervention is crucial for the best cosmetic outcome.

For more in-depth information and resources on plagiocephaly, consider exploring the resources provided by the American Academy of Pediatrics.

Frequently Asked Questions

No, you should not use special pillows to fix a flat head. The American Academy of Pediatrics does not recommend any pillows, wedges, or positioners for safe sleep, as they can increase the risk of SIDS.

For positional plagiocephaly, no. The condition is primarily cosmetic and does not affect brain growth. However, if left unaddressed, severe plagiocephaly can be associated with developmental delays due to limited neck movement.

The goal is at least 30 minutes of total supervised tummy time per day, broken up into short sessions throughout the day. You can start with a minute or two at a time and gradually increase the duration as your baby gets used to it.

Plagiocephaly is a flattening of the skull due to external pressure and is very common. Craniosynostosis is a rare condition where the skull bones fuse too early and may require surgery. A doctor can tell the difference with a physical exam.

You should consult your pediatrician if you notice a flat spot, especially if it seems severe, if repositioning isn't working after a few weeks, or if you notice your baby has trouble turning their head. Early intervention is most effective.

No, helmet therapy is not always necessary. Many cases of mild positional plagiocephaly resolve naturally with consistent repositioning and tummy time. Helmets are typically reserved for moderate to severe cases.

Yes, a flat head can often be prevented. The key is to start early with repositioning techniques and regular, supervised tummy time to keep pressure off the back of the head.

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.