This article reports the imaging data of a child with caudal degeneration syndrome. The clinical manifestation of the child is bilateral lower limb malformation and urinary and fecal incontinence. The imaging manifestation is loss of the lumbosacral and caudal vertebrae, bilateral iliac bone displacement and formation of false joints, bilateral hip abduction, and bilateral knee flexion; Loss of muscle density in the lower abdomen, posterior pelvic cavity, and bilateral buttocks; Multiple patchy density reduction shadows in both cerebral hemispheres; Horseshoe kidney.