Fetal Plagiocephaly: Flat Head Syndrome in the Womb

Understanding Fetal Head Flattening

Plagiocephaly (flat head) can develop before birth when a fetus's soft skull bones are molded by pressure in the uterus.

Contributing Factors

• Intrauterine constraint – limited space (multiples, low amniotic fluid).
• Maternal positioning – prolonged back-lying restricting fetal movement.
• Breech presentation – feet/buttocks down increases head pressure.
• Torticollis – tight neck muscles tilt head to one side.

Outlook & Management

• Most cases are benign and resolve as the baby grows.
• Severe flattening may link to developmental concerns; evaluation recommended.
• Discuss any head-shape concerns with a healthcare provider for assessment and guidance.