A cephalohematoma is a collection of blood between a newborn’s skull bone and the periosteum, the membrane covering the bone. It usually develops after pressure during labor and delivery and appears as a raised bump on the baby’s head, often becoming noticeable within the first few days after birth. Unlike some other types of newborn head swelling, a cephalohematoma does not cross the skull’s suture lines. Most cases gradually resolve without treatment over several weeks to months, although monitoring is important because complications such as jaundice or anemia can sometimes occur.
What Is a Cephalohematoma in a Newborn?
A cephalohematoma develops when small blood vessels rupture during birth, allowing blood to collect between the skull bone and its periosteum. The resulting swelling is usually confined to one skull bone and may appear on the top, side, or back of the newborn’s head.
The bump may not be obvious immediately after delivery. Because blood collects gradually, parents may notice it several hours or days after birth. The swelling is often firm and well-defined, while the skin over it may look normal.
A cephalohematoma forms outside the skull, rather than inside the brain. Most cases heal as the body gradually reabsorbs the collected blood. However, a healthcare professional should assess any new or unexplained swelling on a newborn’s head to confirm the diagnosis and determine whether monitoring or further evaluation is needed.
Cephalohematoma vs. Caput Succedaneum vs. Subgaleal Hemorrhage
Several conditions can cause swelling on a newborn’s head after delivery. Cephalohematoma, caput succedaneum, and subgaleal hemorrhage affect different tissue layers and have different levels of risk.
| Feature | Cephalohematoma | Caput Succedaneum | Subgaleal Hemorrhage |
| Location | Between the skull bone and periosteum | In the scalp tissues | In a deeper, loose tissue space beneath the scalp |
| Crosses skull suture lines? | No | Yes | Yes |
| Typical appearance | Localized, well-defined swelling | Diffuse, soft swelling | Diffuse swelling that may spread |
| When it appears | Often becomes noticeable hours or days after birth | Usually present at birth | May develop or progress after birth |
| Usual course | Resolves over weeks to months | Usually improves within days | Can cause significant blood loss and requires urgent medical care |
Caput succedaneum generally improves without treatment. A cephalohematoma also usually resolves on its own, but it requires appropriate follow-up. A suspected subgaleal hemorrhage is different because it can become life-threatening and needs immediate medical assessment.
Parents should not try to identify the condition based on appearance alone. A healthcare professional can examine the swelling and determine whether further testing or treatment is necessary.
What Causes a Cephalohematoma?
A cephalohematoma occurs when pressure or shearing forces during childbirth damage small blood vessels beneath the periosteum. Blood then collects between the membrane and the skull bone.
Factors associated with a higher risk include:
- Assisted delivery using forceps or a vacuum extractor.
- Prolonged or difficult labor.
- Increased pressure on the baby’s head during delivery.
- A larger newborn or other circumstances that make delivery more difficult.
A cephalohematoma can occur even when delivery proceeds without obvious complications. Its presence does not, by itself, mean that a parent or healthcare professional did something wrong.
Symptoms of Cephalohematoma in Newborns
The most recognizable symptom is a localized bump on the baby’s head. It may be firm, well-defined, and limited to one area of the skull. The swelling can become more noticeable during the first few days after birth.
Most babies do not have symptoms beyond the bump itself. However, the blood collected in a cephalohematoma can increase the risk of certain complications.
Possible complications
Jaundice: As the body breaks down the collected blood, bilirubin levels may rise, causing yellowing of the skin or whites of the eyes.
Anemia: In some cases, blood loss associated with the cephalohematoma can contribute to a low red blood cell count.
Calcification: Occasionally, the edges of a cephalohematoma harden as calcium deposits form. This can leave a firm ridge or persistent bump that may require specialist assessment.
Infection: Infection is uncommon but possible. Redness, warmth, drainage, or fever should be assessed promptly.
When should parents seek medical care?
Contact your baby’s healthcare professional promptly if the swelling increases, the baby develops jaundice, feeding becomes difficult, or the baby seems unusually irritable or sleepy.
Seek emergency medical care if your newborn is difficult to wake, appears very pale or weak, has trouble breathing, has seizure-like movements, or develops rapidly spreading head swelling. These signs can indicate a serious condition that requires urgent assessment.
How Is Cephalohematoma Diagnosed?
A healthcare professional can often diagnose cephalohematoma through a physical examination and the baby’s birth history. The localized swelling that does not cross the skull’s suture lines is an important clinical feature.
During the assessment, the clinician may check:
- The size, location, and appearance of the swelling.
- Whether the bump is changing over time.
- The baby’s feeding, alertness, and general condition.
- Signs of jaundice, anemia, or other complications.
Imaging is not necessary in every case. An ultrasound, X-ray, or CT scan may be considered when the diagnosis is uncertain, a skull fracture is suspected, or the clinical findings warrant further investigation.
If parents have concerns about persistent swelling, an unusual head shape, or the need for specialist assessment, they can learn about the available Pediatric Neurology services and discuss the appropriate next steps with their healthcare professional.
Cephalohematoma Treatment and Management
Most cephalohematomas do not require a procedure. Treatment generally focuses on observation, routine pediatric follow-up, and monitoring for complications.
Watchful waiting
As the body gradually reabsorbs the collected blood, the bump usually becomes smaller over several weeks or months. A clinician may monitor its size and check for jaundice or other concerns during follow-up visits.
Parents should avoid pressing, rubbing, or massaging the swelling. These actions do not speed up healing and may irritate the affected area.
Does a cephalohematoma need to be drained?
Drainage is generally avoided because it can introduce infection and may not be effective once the blood has clotted. A specialist may consider additional intervention in selected circumstances, such as suspected infection or a persistent, significant deformity.
Treatment decisions depend on the individual baby’s examination and clinical needs.
What happens if a cephalohematoma becomes calcified?
Sometimes, a cephalohematoma develops a firm or hard edge as it heals. This is known as a calcified cephalohematoma. A persistent bump can change the contour of the skull and may take longer to improve than an uncomplicated cephalohematoma.
Many cases gradually remodel as the child grows. However, if the bump remains prominent, becomes more noticeable, or affects the shape of the head, a pediatric specialist can assess it and discuss appropriate management options.
When the concern involves head shape, parents can also explore NJPNI’s Cranial Orthotics (Helmet) Center. Helmet therapy is not a routine treatment for cephalohematoma itself; a clinician must first determine whether it is appropriate for the child’s specific head-shape concern.
How Long Does a Cephalohematoma Take to Heal?
Most cephalohematomas resolve gradually over several weeks to a few months. The time required depends on the size of the collection and the baby’s individual healing process.
During recovery, parents may notice that the center of the bump becomes softer or smaller while the edges remain firm. This can occur as the collected blood is reabsorbed. If the swelling becomes harder, remains prominent, grows, or does not improve as expected, the baby should be reassessed by a healthcare professional.
Regular pediatric follow-up helps confirm that the bump is healing appropriately and allows complications to be identified early.
Can a Cephalohematoma Cause Brain Damage?
A typical cephalohematoma is located outside the skull and does not directly injure the brain. Most babies recover without lasting problems related to the cephalohematoma.
However, the presence of a scalp bump does not rule out another condition or an associated injury. A newborn with unusual swelling, concerning symptoms, or changes in behavior should receive appropriate medical assessment rather than relying on the appearance of the bump alone.
Conditions involving skull development or head shape are separate from a simple cephalohematoma. If a clinician identifies a different concern, the appropriate evaluation and management will depend on that diagnosis.
When Should You See a Pediatric Specialist?
Most babies with a cephalohematoma need routine pediatric monitoring rather than specialist treatment. A specialist assessment may be appropriate if:
- The swelling is increasing rather than gradually improving.
- A firm or prominent bump persists for an extended period.
- The baby has an unusual or changing head shape.
- Examination or imaging raises concern about an associated skull abnormality.
- Your pediatrician recommends further evaluation.
NJPNI’s pediatric neuroscience team can assess relevant concerns, review available imaging, and help families understand the next steps when specialist evaluation is appropriate.
For related information, parents can read The Role of Physical Therapy in Cephalohematoma Rehabilitation. Physical therapy is not a standard treatment for the blood collection itself; any therapy should be recommended according to the child’s individual needs and clinical assessment.
Frequently Asked Questions About Cephalohematoma
How long does a cephalohematoma last?
Most cephalohematomas resolve over several weeks to a few months. Larger collections or those that become calcified may take longer. Your baby’s healthcare professional can monitor the healing process and advise whether further assessment is needed.
Is a cephalohematoma dangerous?
Most cephalohematomas are not dangerous and heal without a procedure. However, complications such as jaundice, anemia, or infection can occur. Seek medical advice if the swelling changes or your baby develops concerning symptoms.
Does a cephalohematoma need to be drained?
Usually, no. Drainage is generally avoided because it can increase the risk of infection and may not work well once the blood has clotted. A specialist may recommend intervention in selected cases.
Can rubbing a cephalohematoma make it go away faster?
No. Rubbing or massaging the bump does not speed up the body’s reabsorption of blood. Avoid applying pressure to the area and follow your baby’s healthcare professional’s instructions.
What happens if a cephalohematoma becomes calcified?
A calcified cephalohematoma develops a firm or hard edge as it heals. The bump may gradually remodel over time, but persistent or prominent swelling should be evaluated by a healthcare professional to determine whether further management is needed.
Can a cephalohematoma affect a baby’s brain development?
An uncomplicated cephalohematoma forms outside the skull and does not directly injure the brain. However, any associated injury or separate medical condition needs its own evaluation. Seek medical advice if your baby has unusual symptoms or changes in behavior.
When should I contact a doctor about my baby’s head bump?
Discuss any new head swelling with your baby’s healthcare professional. Seek prompt medical assessment if the bump grows, the baby develops jaundice, feeding becomes difficult, or the baby is unusually sleepy or irritable. Emergency symptoms, including difficulty waking, marked paleness, breathing problems, or seizure-like movements, require emergency care.
Worried About a Bump on Your Newborn’s Head?
A new bump on your baby’s head can be worrying. Although most cephalohematomas resolve without treatment, a healthcare professional can confirm the diagnosis, monitor healing, and identify any complications that require attention.
If your baby has persistent swelling, a changing head shape, or has been referred for specialist evaluation, contact NJPNI to discuss the appropriate next steps.
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