Types of Flathead Syndrome: Plagiocephaly, Brachycephaly & Scaphocephaly
Flathead syndrome, also known as positional plagiocephaly, is a condition in which a baby’s head develops a flat spot, often due to consistent pressure on one part of the skull. While this condition might sound alarming to new parents, it is relatively common and generally treatable with early intervention.
In this extensive blog, we’ll dive into the causes, symptoms, treatments, prevention, and long-term outcomes of flathead syndrome, also exploring broader aspects such as medical advancements and societal perceptions. This blog will be divided into several sections to cover the topic comprehensively.
Table of Contents
Introduction to Flathead Syndrome
What Causes Flathead Syndrome?
Types of Flathead Syndrome
Plagiocephaly
Brachycephaly
Scaphocephaly

Baby girl wearing a cranial remoulding helmet for flat head
Risk Factors for Flathead Syndrome
Identifying the Symptoms of Flathead Syndrome
Diagnosis of Flathead Syndrome
Medical Assessments
Imaging Techniques
Treatment Options for Flathead Syndrome
Repositioning Techniques
Helmet Therapy
Physical Therapy
Preventing Flathead Syndrome
The “Back to Sleep” Campaign
Tummy Time
Car Seats and Baby Carriers
Long-Term Effects of Flathead Syndrome
Flathead Syndrome vs. Craniosynostosis: Key Differences
The Role of Physical Therapy in Managing Flathead Syndrome
Helmet Therapy: Pros and Cons
When to Seek Medical Advice
Medical Advances in Treating Flathead Syndrome
Impact on Families: Emotional and Psychological Considerations
Societal Perceptions and Misconceptions About Flathead Syndrome
Flathead Syndrome in Adults: Is It Possible?
Research and Future Directions in the Study of Flathead Syndrome
Conclusion
Introduction to Flathead Syndrome
Flathead syndrome, or positional plagiocephaly, is a condition that primarily affects infants during the early months of life. Characterized by an asymmetrical or flattened shape of the skull, this condition has become more prevalent with the widespread adoption of the “Back to Sleep” campaign, which advises parents to place infants on their backs to sleep to reduce the risk of sudden infant death syndrome (SIDS).
While this initiative has successfully reduced the rates of SIDS, it has also led to an increase in cases of flathead syndrome, as babies spend more time lying on their backs, which can result in pressure on one part of the head. Flathead syndrome can manifest in different forms, including plagiocephaly (flattening of one side of the head), brachycephaly (wider and flatter head shape), and scaphocephaly (elongated head).
In most cases, flathead syndrome is a cosmetic issue that does not impact brain development or cognitive function. However, early detection and intervention are key to correcting the skull shape and preventing further complications. This blog will cover all aspects of flathead syndrome, from understanding its causes to discussing the various treatment options available.
What Causes Flathead Syndrome?
The primary cause of flathead syndrome is prolonged pressure on one part of the skull, which can occur for several reasons:
Sleeping position: Babies spend a significant amount of time lying on their backs, especially in the first few months of life when they are not yet able to roll over or sit up. If a baby consistently rests on one part of the head, that area can become flattened.
Torticollis: This is a condition in which the muscles of the neck are tight or shortened, causing the baby’s head to tilt to one side. If untreated, torticollis can lead to flathead syndrome, as the baby will naturally rest on the same part of the head.
In-utero positioning: Some babies are born with a flat spot on their head due to their position in the womb. This is more common in babies who are part of a multiple birth (twins, triplets, etc.) or in cases of restricted space in the uterus.
Prematurity: Premature babies have softer skulls than full-term infants, making them more susceptible to developing flat spots. Additionally, premature babies often spend extended time in the neonatal intensive care unit (NICU), where they are frequently positioned on their backs or sides to monitor their health.
Limited movement: Babies with developmental delays or those who are less active may spend more time in the same position, increasing the likelihood of developing a flat spot on the head.

Baby girl wearing a cranial remoulding helmet for flat head having fun playing on slides and swings at a Playparks on a sunny day
Types of Flathead Syndrome
There are three primary types of flathead syndrome:
Plagiocephaly
Plagiocephaly is the most common form of flathead syndrome and occurs when one side of the head is flatter than the other. The asymmetry is often noticeable from a bird’s eye view, with the ears and facial features sometimes appearing misaligned.
Brachycephaly
Brachycephaly refers to a wider, shorter head shape. In this condition, the back of the head flattens, causing the head to appear broad and short. This can happen when a baby spends excessive time lying on their back, as the entire back of the skull experiences pressure.
Scaphocephaly
Less common than the other two types, scaphocephaly is an elongated head shape, where the skull becomes long and narrow. This condition is often associated with premature babies who spend time in the NICU, where they are positioned on their sides to aid in breathing and care.
Risk Factors for Flathead Syndrome
Several factors can increase the risk of a baby developing flathead syndrome:
Consistent back sleeping: While necessary for preventing SIDS, back sleeping increases the likelihood of developing a flat spot if the baby’s head is always in the same position.
Torticollis: Babies with torticollis are at higher risk for plagiocephaly due to limited neck mobility.
Prematurity: Premature babies have softer skulls and may spend more time in positions that put pressure on certain parts of their heads.
Multiple births: Twins, triplets, and other multiples are more likely to experience flathead syndrome due to space constraints in the womb and the need for extended back-lying positions after birth.
Prolonged time in car seats or carriers: When babies spend too much time in car seats, swings, or other carriers where their heads are in a fixed position, they are at greater risk for developing flat spots.
Identifying the Symptoms of Flathead Syndrome
Flathead syndrome is generally easy to identify based on the shape of the baby’s head. The most common signs of positional plagiocephaly include:
Flat spot on the back or side of the head: This is the most noticeable sign of flathead syndrome. The flattening may be more prominent on one side, as seen in plagiocephaly, or it may affect the entire back of the head, as seen in brachycephaly.
Asymmetry of the head: In cases of plagiocephaly, the baby’s head may appear uneven or misshapen when viewed from above. One side of the head may be flatter, and the ears or facial features may be misaligned.
Uneven ears or forehead: Some babies with flathead syndrome may develop facial asymmetry, with one ear positioned slightly lower or further forward than the other. The forehead may also appear more prominent on one side.
Limited neck movement: Babies with torticollis may have difficulty turning their head to one side, contributing to the development of a flat spot.
Diagnosis of Flathead Syndrome
Diagnosing flathead syndrome typically begins with a physical examination by a paediatrician. During the exam, the doctor will assess the shape of the baby’s head, check for any asymmetry or flat spots, and ask about the baby’s sleeping and feeding positions.
Medical Assessments
In most cases, a paediatrician can diagnose flathead syndrome based on a visual assessment and the baby’s medical history. The doctor will also check for signs of torticollis or other underlying conditions that may contribute to the development of flat spots.
Imaging Techniques
In some cases, particularly if the asymmetry is severe or if there is concern about craniosynostosis (a condition where the skull bones fuse prematurely), the pediatrician may recommend imaging studies such as:
X-rays: X-rays can help assess the shape of the skull and determine if the bones are fusing correctly.
CT scans or MRIs: These imaging techniques may be used to get a more detailed view of the skull and brain. However, they are generally not necessary for diagnosing flathead syndrome unless there are concerns about other medical conditions.

Baby girl wearing a cranial remoulding helmet for flat head
Treatment Options for Flathead Syndrome
The treatment for flathead syndrome depends on the severity of the condition and the age of the baby. Most cases of mild to moderate flathead syndrome can be treated with simple interventions, while more severe cases may require medical treatment.
Repositioning Techniques
For mild cases of flathead syndrome, repositioning the baby’s head during sleep and play is often sufficient to correct the flattening. This involves changing the baby’s position frequently to avoid prolonged pressure on the flat spot. Some repositioning techniques include:
Tummy time: Supervised tummy time during play is one of the most effective ways to prevent and treat flathead syndrome. It helps strengthen the baby’s neck and shoulder muscles, allowing for better head control and reducing time spent lying on the back.
Side sleeping (while awake): During supervised playtime, encourage the baby to spend time lying on their side. This helps take pressure off the back of the head and promotes symmetrical head development.
Adjusting sleeping position: If your baby tends to sleep with their head turned to one side, gently encourage them to sleep with their head turned to the opposite side. This can be done by placing toys or interesting objects on the side you want them to turn toward.
Helmet Therapy
In more severe cases of flathead syndrome, helmet therapy may be recommended. Helmet therapy involves fitting the baby with a custom-molded helmet designed to gently reshape the head over time. The helmet applies pressure to certain areas of the skull while allowing other areas to grow naturally.
When is helmet therapy recommended?: Helmet therapy is usually recommended for babies with moderate to severe flathead syndrome who are between 4 and 12 months old. This is the period when the skull is still malleable and can be reshaped with the help of the helmet.
How does helmet therapy work?: The helmet does not “squeeze” the baby’s head but instead provides a space for the flattened areas of the skull to expand while gently guiding the rest of the skull into a more symmetrical shape. The baby typically wears the helmet for 23 hours a day for several months.
Effectiveness of helmet therapy: Studies have shown that helmet therapy can be highly effective in correcting the shape of the skull, particularly when started early. However, it requires commitment from parents, as the helmet must be worn consistently for the treatment to be successful.
Physical Therapy
For babies with torticollis or other muscle imbalances that contribute to flathead syndrome, physical therapy may be recommended. A physical therapist can help stretch and strengthen the baby’s neck muscles, improving head mobility and reducing the risk of further flattening.
Torticollis treatment: Physical therapy for torticollis involves gentle stretching exercises to lengthen the neck muscles on the affected side. These exercises help improve the baby’s ability to turn their head in both directions, reducing the likelihood of developing flat spots.
Strengthening exercises: Physical therapy also focuses on strengthening the baby’s neck, back, and shoulder muscles to improve overall posture and head control.
Preventing Flathead Syndrome
Prevention is key when it comes to flathead syndrome, and there are several steps parents can take to reduce the risk of their baby developing flat spots on their head.
The “Back to Sleep” Campaign
The “Back to Sleep” campaign, launched in the 1990s, advised parents to place their babies on their backs to sleep to reduce the risk of SIDS. While this recommendation remains critical for preventing SIDS, it has also led to an increase in cases of flathead syndrome due to prolonged back-lying positions.
How to balance back sleeping with flathead syndrome prevention: While it’s important to always place your baby on their back to sleep, you can reduce the risk of flat spots by changing their head position regularly. Alternate the direction your baby’s head is facing each time you put them down to sleep, and encourage tummy time during waking hours.
Tummy Time
Tummy time is one of the most effective ways to prevent flathead syndrome. When babies spend time on their stomachs, they are less likely to develop flat spots on their heads, and it also helps strengthen their neck and shoulder muscles, improving head control.
When to start tummy time: You can start tummy time as soon as your baby is born. Begin with short sessions of a few minutes at a time and gradually increase the duration as your baby becomes more comfortable. Aim for at least 30 minutes of tummy time each day by the time your baby is 3 months old.
Car Seats and Baby Carriers
While car seats, swings, and baby carriers are essential for safety and convenience, they can contribute to flathead syndrome if babies spend too much time in them. Limit the amount of time your baby spends in these devices, and encourage playtime on a flat surface where they can move freely.
Choosing the right carrier: When using a baby carrier, opt for one that supports your baby’s head and allows for proper head positioning. Some carriers provide better neck support and encourage the baby to move their head naturally, reducing the risk of flat spots.
Long-Term Effects of Flathead Syndrome
The good news is that flathead syndrome is primarily a cosmetic issue and does not affect brain development or cognitive function. Most babies with flathead syndrome go on to develop normally, and their head shape improves with time and treatment.
Can flathead syndrome affect a child’s development?: In most cases, flathead syndrome does not impact a child’s developmental milestones. However, if the condition is caused by torticollis or other underlying issues, it’s important to address those concerns with a pediatrician to ensure proper motor development.
Will my baby’s head shape improve naturally?: In mild cases of flathead syndrome, the head shape often improves naturally as the baby grows and becomes more mobile. As babies learn to sit up, crawl, and walk, they spend less time lying on their backs, which reduces the pressure on their skull and allows the flattened areas to round out.
Are there any long-term effects of flathead syndrome?: In rare cases, severe flathead syndrome may result in persistent asymmetry of the skull or facial features. However, these cosmetic differences are usually subtle and do not affect the child’s overall health or well-being.
Flathead Syndrome vs. Craniosynostosis: Key Differences
While flathead syndrome and craniosynostosis both involve abnormal head shapes, they are distinct conditions with different causes and treatments.
Flathead Syndrome (Positional Plagiocephaly)
Cause: Flathead syndrome is caused by external pressure on the skull, typically due to prolonged time spent lying in one position.
Treatment: Treatment for flathead syndrome focuses on repositioning techniques, tummy time, and, in some cases, helmet therapy.
Craniosynostosis
Cause: Craniosynostosis is a congenital condition in which one or more of the skull bones fuse prematurely, preventing normal brain and skull growth. This can lead to abnormal head shapes and, in some cases, developmental delays.
Treatment: Craniosynostosis typically requires surgical intervention to correct the shape of the skull and allow for proper brain development.
Diagnosis: While flathead syndrome is diagnosed based on physical appearance and history, craniosynostosis is often confirmed with imaging studies, such as X-rays or CT scans, to assess the structure of the skull.
The Role of Physical Therapy in Managing Flathead Syndrome
Physical therapy plays a crucial role in managing flathead syndrome, especially when the condition is linked to torticollis or other muscle imbalances. A physical therapist can work with parents to develop a personalized treatment plan that includes exercises and activities to improve the baby’s head movement and prevent further flattening.
What does physical therapy for flathead syndrome involve?: Physical therapy for flathead syndrome typically focuses on stretching and strengthening the neck and shoulder muscles. This helps improve the baby’s ability to turn their head in both directions, reducing the risk of developing flat spots.
How often should a baby with flathead syndrome see a physical therapist?: The frequency of physical therapy sessions depends on the severity of the condition and the baby’s progress. In mild cases, parents may be able to perform the recommended exercises at home with guidance from a therapist. In more severe cases, regular therapy sessions may be necessary.

Baby girl wearing a cranial remoulding helmet for flat head
Helmet Therapy: Pros and Cons
Helmet therapy is one of the most effective treatments for moderate to severe flathead syndrome, but it’s not without its challenges. Here are some of the pros and cons of helmet therapy:
Pros of Helmet Therapy
Effective correction: Helmet therapy can significantly improve the shape of the baby’s head, particularly when started early. It’s especially beneficial for babies with severe flattening or those who don’t respond to repositioning techniques.
Non-invasive: Helmet therapy is a non-invasive treatment option that doesn’t involve surgery or medication. It’s a safe and effective way to guide the growth of the skull.
Personalized treatment: Each helmet is custom-made to fit the baby’s head, ensuring that it provides the right amount of pressure and space for the skull to grow in the desired areas.
Cons of Helmet Therapy
Cost: Helmet therapy can be expensive, and not all insurance plans cover the cost. The price of a custom-molded helmet can range from several hundred to several thousand dollars, depending on the provider and location.
Commitment: For helmet therapy to be effective, the baby must wear the helmet for 23 hours a day, which can be challenging for both the baby and the parents. The helmet must also be regularly adjusted as the baby grows.
Discomfort: Some babies may experience discomfort or irritation from wearing the helmet, especially in the beginning. It can take time for the baby to adjust to wearing the helmet for extended periods.
Aesthetic concerns: While helmet therapy is temporary, some parents may be concerned about the appearance of the helmet and how it will affect their baby’s interactions with others.
When to Seek Medical Advice
It’s important for parents to seek medical advice if they notice any signs of flathead syndrome or if they have concerns about their baby’s head shape. Early intervention is key to preventing the condition from worsening and ensuring proper treatment.
Signs to watch for: If your baby has a flat spot on their head, asymmetry of the skull or facial features, or difficulty turning their head, it’s important to consult a pediatrician. Additionally, if your baby has torticollis or limited neck movement, a referral to a physical therapist may be necessary.
When to start treatment: The earlier flathead syndrome is detected, the easier it is to treat. Repositioning techniques and tummy time are most effective when started within the first few months of life. Helmet therapy is typically recommended for babies between 4 and 12 months old, when the skull is still malleable.
Medical Advances in Treating Flathead Syndrome
Over the years, there have been several medical advances in the treatment of flathead syndrome, including improvements in helmet therapy and physical therapy techniques.
3D scanning technology: One of the most significant advances in helmet therapy is the use of 3D scanning technology to create custom-molded helmets. This technology allows for precise measurements of the baby’s head, ensuring a better fit and more effective treatment.
Innovations in helmet design: Modern helmets are lighter, more breathable, and more comfortable than earlier versions, making it easier for babies to wear them for extended periods.
Telemedicine for physical therapy: With the rise of telemedicine, parents can now access physical therapy services remotely, allowing for more convenient and accessible care. This is especially beneficial for families who live in rural areas or have difficulty traveling to appointments.
Impact on Families: Emotional and Psychological Considerations
Caring for a baby with flathead syndrome can be emotionally challenging for parents, especially if the condition is severe or requires helmet therapy. Some of the emotional and psychological considerations for families include:
Guilt and anxiety: Many parents feel guilty or anxious about their baby’s flathead syndrome, worrying that they may have contributed to the condition by not repositioning their baby enough or using certain sleep products. It’s important for parents to remember that flathead syndrome is a common condition and that early intervention can help correct the issue.
Social stigma: Some parents may feel self-conscious about their baby wearing a helmet in public, worrying about how others will perceive their child. It’s important to focus on the long-term benefits of the treatment and to surround yourself with supportive friends and family.
Support groups: Joining a support group for parents of babies with flathead syndrome can be helpful. Sharing experiences with other parents who are going through the same situation can provide emotional support and practical advice.
Societal Perceptions and Misconceptions About Flathead Syndrome
There are several societal perceptions and misconceptions about flathead syndrome that can affect how parents approach treatment.
Misconception 1: Flathead syndrome is caused by bad parenting: Some people mistakenly believe that flathead syndrome is the result of negligence or improper care. In reality, it is a common condition that can affect any baby, and it often occurs despite parents’ best efforts.
Misconception 2: Helmets are unnecessary: While some mild cases of flathead syndrome can improve with repositioning alone, helmet therapy is a valuable treatment option for babies with moderate to severe flattening. It’s important to trust the medical advice of your paediatrician or specialist.
Perception of helmet-wearing: Some parents may worry about how others will perceive their baby wearing a helmet. However, many parents find that people are curious and supportive, and some even decorate their baby’s helmet with stickers or designs to make it more fun.
Flathead Syndrome in Adults: Is It Possible?
While flathead syndrome primarily affects infants, some adults may have residual asymmetry from untreated flathead syndrome in childhood. However, this is typically a cosmetic issue and does not affect cognitive or brain function.
Can adults develop flathead syndrome?: No, flathead syndrome occurs during infancy when the skull is still malleable. Once the skull bones have fused, the head shape is set, and it’s not possible to develop flathead syndrome later in life.
Treatment options for adults: In rare cases where an adult has significant asymmetry of the skull, cosmetic surgery may be an option. However, most adults with residual flattening from childhood do not seek treatment, as the condition does not impact their daily life.

Baby girl wearing a cranial remoulding helmet for flat head
Research and Future Directions in the Study of Flathead Syndrome
Research on flathead syndrome continues to evolve, with new studies exploring the causes, prevention, and treatment of the condition.
Genetic factors: Some research suggests that genetic factors may play a role in the development of flathead syndrome, particularly in cases of torticollis or other muscle imbalances.
Improving helmet therapy outcomes: Researchers are studying ways to improve the effectiveness of helmet therapy, including optimizing the timing and duration of treatment.
Long-term outcomes: While most babies with flathead syndrome have no long-term health issues, researchers are exploring the potential long-term effects of the condition, particularly in severe cases.
Flathead syndrome, or positional plagiocephaly, is a common condition that affects many infants during the early months of life. While the condition can cause concern for parents, the good news is that it is generally treatable and does not affect brain development or cognitive function. Early intervention, including repositioning techniques, tummy time, physical therapy, and helmet therapy, can help correct the shape of the baby’s head and prevent long-term issues.
As medical advancements continue, the treatment options for flathead syndrome are becoming more effective and accessible. With the right care and support, babies with flathead syndrome can go on to develop normally and live healthy, happy lives.
If you suspect your baby may have flathead syndrome, it’s important to consult with a paediatrician to discuss the best treatment options. Early detection and intervention are key to ensuring the best possible outcome for your baby.
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