Caput Succedaneum vs Cephalohematoma
Caput Succedaneum
- Edema (fluid accumulation) of the scalp soft tissues above the periosteum.
- Cause:
- Caused by pressure from the cervix on the presenting part of the fetal scalp during vaginal delivery.
- Especially common after prolonged or difficult labor, or premature rupture of membranes.
- Key Features:
- Soft, boggy swelling on the scalp
- Pitting edema
- Present at birth
- Crosses suture lines (because it's superficial to skull bones)
- Usually not tender
- Location: Subcutaneous tissue layer (above periosteum)
- Resolution:
- Spontaneous resolution within a few days
- Complications:
- Usually none. benign
Cephalohematoma
- Collection of blood beneath the periosteum of a cranial bone due to rupture of blood vessels.
- Cause:
- Caused by birth trauma (especially from vacuum extraction or forceps-assisted delivery).
- Blood vessels between the skull and periosteum rupture.
- Key Features:
- Firm, non-pitting, well-defined swelling
- Appears hours to days after birth (not immediate)
- Does NOT cross suture lines (because blood is trapped under periosteum of one bone)
- Often located over parietal bone
- Location: Subperiosteal space (between skull bone and periosteum)
- Resolution:
- Resolves spontaneously in weeks to months
- Complications:
- Risk of hyperbilirubinemia (from breakdown of trapped red blood cells)
- Rarely may calcify or become infected