WATER BIRTH SAFETY SERIES Part 6 Umbilical Cord Avulsion and Water Birth: What Does the Risk Actually Mean?

August 10, 2026

Umbilical Cord Avulsion and Water Birth: What Does the Risk Actually Mean?

If you've been researching water birth risks, you may have encountered the rather alarming phrase:

Umbilical cord avulsion.

It means that the umbilical cord snaps before it has been clamped.

And yes, research suggests it happens more often during water birth than birth out of water.

But context matters.

Is cord avulsion common?

No.

NICE describes the absolute risk as small, while still specifically recommending that parents considering water birth are told about the increased risk.

The risk is thought to be particularly relevant as the newborn is brought from beneath the water to the surface.

That makes appropriate water-birth technique important.

Why talk about it at all?

Because informed choice means giving people information even when that information isn't particularly convenient for whichever “side” of the birth debate you're on.

If water birth has a benefit, let's say so.

If it has a risk, let's say that too.

Neither fact needs to frighten us.

The useful question isn't:

“Does water birth have any risks?”

Of course it does.

The useful question is:

“What are the risks, how common are they, how do they compare with other birth options, and what can maternity professionals do to manage them?”

That's a much more sensible conversation.

Sources

NICE – Water Birth Recommendations

NICE – Rationale and Impact: Water Birth