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uterine atony

Weak or absent tightening of the uterus muscle after childbirth.

YOO-ter-in AT-uh-nee noun

Word parts

a- withoutton tone, tension-y condition

What it means

After the placenta comes out, the uterus normally clamps down to squeeze shut the blood vessels where the placenta was attached. When it stays soft, those vessels keep bleeding. It is the most common cause of postpartum hemorrhage. A very large uterus (twins, a big baby), long labor, a full bladder and some drugs raise the risk.

For the nurse

Check the fundusFUN-dusThe rounded top or base of a hollow organ, most often the top of the uterus.Full entry often after birth. If it is soft, massage it until firm, help the client empty the bladder, and report it; give uterine-contracting drugs such as oxytocin as ordered.

At a glance

Spanishatonía uterina

Related terms

hemorrhage

A large loss of blood from a blood vessel, inside the body or out of it.

postpartum

The time after giving birth, usually the first six weeks, while the body returns to its non-pregnant state.

massage

Rubbing, pressing or kneading the body's soft tissues to relax muscles, ease pain or improve blood flow.

fundus

The rounded top or base of a hollow organ, most often the top of the uterus.

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