The lumbar plexus is fashioned lateral to the intervertebral foramina through the ventral rami of the 1st four lumbar spinal nerves (L1-L4), which all go through psoas main. The larger branches of your plexus exit the muscle to pass sharply downward to reach the abdominal wall as well as the https://www.sgvascularctr.com/swelling-leg-treatment-singapore/