The lumbar fossa are actually two depressions below the lower back, on both sides of the joint between the hip bone and the lumbar spine.

Known as Maxwell in medicine, commonly known as lumbar fossa, it is also known as sacred vortex in the art world, which means one of the most ideal mannequin symbols. There is also a dimple named Venus in the lumbar fossa, which is considered to be the sexiest eye of the human body.

It's normal for a man to have a lumbar fossa, it's just a matter of probability. Waist fossa means nothing. Men with lumbar fossa are not kidney-deficient, nor are they without kidneys, but each of us has a different bone development.