Caput Succedaneum (Swelling Edema of Scalp During Labor)

Written by Christine Case-Lo | Published on September 19, 2012
Medically Reviewed by George Krucik, MD

What Is Caput Succedaneum?

Caput succedaneum refers to swelling of an infant’s scalp, which appears as a lump or bump on the head shortly after delivery. This condition is harmless and is caused by pressure put on the infant’s head during delivery. It does not indicate damage to the brain or the bones of the cranium.

Though caused by similar factors, this condition should not be confused with cephalohematoma, which refers to bleeding under the scalp.

What Causes Caput Succedaneum?

Prolonged pressure from the dilated cervix or vaginal walls on the baby’s head causes swelling, puffiness, and bruising. These are hallmark symptoms of caput succedaneum. A long, difficult labor with a lot of pushing can cause this condition. The use of vacuum suction or forceps also can increase the risk of this type of swelling.

Scalp swelling may be more likely if the amniotic sac membranes rupture early in labor. In some cases, if the membranes rupture very early or if there is too little fluid in the amniotic sac, the mother’s pelvic bones will put pressure on the infant’s head. As a result, this kind of scalp swelling may occur before labor and can be seen in utero on ultrasound.

Generally, the longer there is a fluid cushion around the infant, the lower the chances of scalp swelling.

What Are the Symptoms of Caput Succedaneum?

The main symptom of caput succedaneum is puffiness under the skin of the scalp. The skin is swollen and soft. Pressing on it will form a dimple in the flesh. The swelling may be on one side or may extend over the midline of the scalp. The effects are usually most apparent on the part of the skull that was the first to come down the birth canal.

There may be some discoloration or bruising, but this is not as extensive as in cephalohematoma. Once the swelling goes down, you may notice that the infant’s head is slightly pointed, due to the pressure on the bones of the head. This is called “molding.” This should go away over time. The bones of the baby’s head are not fused and can move considerably without damage.

A physical exam of the newborn infant is all that is necessary for diagnosis.

What Can I Expect in the Long-Term?

No treatment is necessary for this condition and there should be no long-term effects. The swelling should decrease within several days and the scalp should appear normal within days or weeks.

What Are the Potential Complications of Caput Succedaneum?

The swelling and bruising may increase the risk of infant jaundice, yellowing of the skin due to excess bilirubin in the blood. According to the National Center for Biotechnology Information (NCBI), this should clear up without treatment within one to two weeks (NCBI, 2011).

If your child develops jaundice that does not improve within several weeks, contact your doctor. Blood tests may be required to determine the underlying cause of the jaundice.

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