The aim is to investigate the structure and elements of deciduous teeth in a patient with Congenital insensitivity to pain with anhidrosis (CIPA), using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS).The deciduous teeth of a CIPA patient were collected, The morphological changes were observed by SEM.The weight percentages (wt%) of calcium (Ca), phosphorus (P), and carbon (C) were determined using EDS.