The flank, also known as the latus, is the side of the body that extends between the rib cage and the iliac bone of the hip (see figure) (below the rib cage and above the ilium). It is referred to as the lumbar area in some circles.
When you look at your abdomen, you’ll notice that it has two sides and a back that runs between your lower ribs and hips. Flanking pain is a term used to describe discomfort in this location. Pain in the flanks can be caused by a variety of accidents, ailments, and infections.
What is flank pain?
Having soreness in your upper belly, back, or sides is referred to as flank pain. It manifests as in the region below the ribs and above the pelvic bone. Typically, the pain is more severe on one side of your body than the other.
What is flanks fat?
The flanks are the lateral and posterior areas of the hip that are located slightly above the crest of the hip bone. Even in generally slim people, it is a frequent location for fat to gather.