Birth Stress and Cranial Shape
大村 颯太

Birth Stress and Cranial Shape

Introduction

Hello everyone, this is Omura from Kyoto Osteopathy Center. I am currently studying the field of osteopathy for infants, which I find truly fascinating. I hope many people will come to know more about this area.

A baby’s head goes through a significant transition during birth as it passes through the birth canal.

During this process, the skull undergoes strong pressure and its shape changes dramatically.

In most cases, these changes adjust naturally over time. However, when the stress is excessive, it can affect the shape of the head and even influence brain development.


1. What is Birth Stress?

During natural childbirth, as contractions form, the baby’s head adapts its shape to fit through the birth canal. At this time, the fetal head experiences extremely high pressures ranging from 120–250 mmHg and can even reach 510 mmHg in some cases.

Additional pressure may be applied by obstetric tools such as forceps, vacuum extractors, or external pressure on the uterus.

Physiologically, the intracranial pressure (ICP) is usually regulated within a range of 12–20 mmHg, protecting the baby. However, when the pressure exceeds this capacity, ICP rises sharply, leading to decreased cerebral blood flow and oxygen levels. This can result in hypoxic-ischemic brain injury or traumatic injury during birth.


2. The Shape of the Skull

A newborn’s skull is extremely soft and consists of several bones connected by sutures.

This structure allows flexibility for passage through the birth canal, but strong compression can cause deformations such as flat head syndrome (plagiocephaly) or asymmetrical head shapes.

Moreover, cranial deformation is not only a matter of appearance—it may also impact future posture and motor development.


3. Cranial Adjustment Within the First Year

The skull grows rapidly during the first year of life, and its shape undergoes significant changes.

During this critical period, gentle techniques such as osteopathy can help support natural growth and positively influence the body’s overall balance.

Early intervention is particularly effective when flat head or asymmetrical head shape is noticeable.


In Conclusion

Birth stress is an unavoidable part of life, but its impact can be minimized.

If you have concerns about your baby’s head shape or development, consult a specialist as early as possible.

Osteopathy provides gentle care to help promote healthy growth and natural adjustments for infants.


#Kyoto #KyotoOsteopathyCenter #Osteopathy #Chiropractic #Pain

#Numbness #Paralysis #Posture #Walking #CranialBone #Infant #HeadShape #FlatHead #Plagiocephaly

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Sota Omura,
Qualifications: Licensed Physical Therapist / Master of Health Science

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大村 颯太

大村 颯太

〜薬に頼りすぎない人生を共に創る〜 理論に固執しすぎず、結果にこだわる柔軟な施術家を目指しています。 ・理学療法士 ・健康科学修士 ・JEFPA認定足育アドバイザー ・発達ケア・アドバイザー ~Let's create a life together that doesn't rely too much on medication~ I aim to be a flexible therapist who focuses on results and doesn't get too hung up on theory. ・Physiotherapist ・Master of Health Science ・JEFPA certified foot care advisor ・developmental care advisor

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