Cephalohematoma is a typically harmless condition that causes blood to pool under a newborn’s scalp after a difficult vaginal delivery. Pressure during childbirth, including the use of vacuum extractors, can break blood vessels in the scalp. It rarely requires treatment, but it may increase the risk of jaundice, anemia and infections.
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Cephalohematoma (seh-FEL-low HE-muh-toe-muh) is blood that collects between a newborn’s scalp and skull. Hematoma means blood that pools outside blood vessels. Cephalo refers to the head.
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Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy
This type of birth injury occurs when pressure on a baby’s head ruptures blood vessels in the scalp. The blood pools beneath the scalp, forming a soft bulge that eventually hardens.
Cephalohematomas occur in about 2.5% of prolonged, difficult vaginal deliveries. An assisted delivery that requires vacuum extraction or forceps raises the risk to about 1 baby in 10 delivered this way.
These factors increase the risk of a newborn having cephalohematoma:
Pressure on a newborn’s scalp during childbirth can damage or rupture tiny blood vessels in the scalp. Blood collects under the scalp, causing a soft bulge or bump to form, typically on the back of the head. This bulge appears soon after birth and may grow in size for a few days. It may look like a bruise.
Over time, the soft mass starts to harden or calcify. The lump often shrinks in the center first, which can cause it to have a ring-shaped or crater-like appearance.
Cephalohematoma is often harmless. The bruising or blood buildup should go away without treatment in a couple of weeks or months.
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Potential complications of cephalohematoma include:
Cephalohematoma and caput succedaneum (also called caput or newborn conehead) may occur together or separately. Both conditions often go away without treatment.
A note from Cleveland Clinic
Having a newborn with a bruised-looking lump on their scalp can be concerning, but cephalohematomas are generally harmless. This lump should get smaller and go away in a few weeks or months without treatment. Your child’s healthcare provider will keep an eye on the bump at your baby’s newborn visits. Cephalohematomas do increase a baby’s risk of jaundice, anemia and infections. In rare instances, a newborn may also have a skull fracture that should heal on its own. You should contact your child’s healthcare provider if your baby is extremely fussy, shows signs of jaundice or refuses to eat or sleep.
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Last reviewed on 12/28/2021.
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