Sacrum

The sacrum is a large triangular bone at the bottom of the spine. It is inserted like a wedge between the two hip bones.

The sacrum is shorter and wider in women than in men.

Is it an emergency?

If you or someone in your care has chest pains, difficulty breathing, or severe bleeding, it could be a life-threatening emergency. Call 9-1-1 or the local emergency number immediately.
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