Glossary of pregnancy terms: D

Deep transverse arrest

A condition of vaginal delivery that occurs when the baby’s head fails to rotate despite steady descent down the birth canal.

Dilation

In the first stage of labour the cervix, or neck of the womb, gradually opens up to make space for the baby. It needs to open to approximately 10 centimetres before the baby’s head can pass through. This process is called dilation of the cervix.

Domino birth

This is where your midwife sees you at home in early labour, comes with you to deliver your baby in hospital, and accompanies you home afterwards.

Doppler

This is a small handheld machine that picks up your baby’s heartbeat by ultrasound

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