Glossary

Neural tube defect

Neural tube defect

Neuralrohrdefekt·Also: Spina bifida

A neural tube defect is a congenital malformation in which the unborn child's neural tube does not close completely. The best-known example is open spine (spina bifida); folic acid during pregnancy reduces the risk.

Symptoms rather than terms?

Describe what's going on — we'll find the right doctor for you.

Editorial content · as of 9/5/2026