 This study examined the prevalence and relationship of developmental cervical and lumbar spinal stenosis, DCSS and DLSS, with the bone parameters of the skull and extremities. It was found that DCSS was present in 20.1% of the population and DLSS in 9.6%. Additionally, it was discovered that DCSS was correlated with a small skull, a small transverse diameter of the foramen magnum, and a small orbital bone. DLSS, on the other hand, was unrelated to either a small cervical canal or a small skull. This article was authored by Uechikasai, Permsak Palpak, Tachak Wisinadan, and others.