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Sacrum

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

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

By Healthwise Staff
Primary Medical Reviewer Anne C. Poinier, MD - Internal Medicine
Specialist Medical Reviewer C. Dale Mercer, MD, FRCSC, FACS - General Surgery
Last Revised November 15, 2011

WebMD Medical Reference from Healthwise

Last Updated: November 15, 2011
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.