What is the iliac crest?

The iliac crest is the uppermost border of your pelvic girdle, which is like the large bony structure in the middle of a skeleton, often seen in science classrooms. You can identify your iliac crest by pressing your thumb into the top of your hip, feeling for a bony ridge; this is the iliac crest. This region is significant as a reference point in anatomy and is involved in various functions related to balance and movement 1 .