The renal cone is an anatomical structure of the kidney, located in the renal medulla, which is cone-like, hence the name renal cone. The renal parenchyma is divided into renal cortex and renal medulla. The renal medulla is located in the deeper layer of the renal cortex, accounting for about 2/3 of the renal parenchyma, and is less vascularized. Within the renal medulla there are 15-20 conical structures called renal cones. The part of the renal cone that meets the cortex is wide, called the base of the cone, and the boundary between this part and the cortex is unclear. The tips of the renal cones are rounded and blunt and directed toward the renal sinus. The section of the renal cone is triangular, the bottom of the cone is toward the convex side of the kidney, and the tip is toward the renal hilum, the main structure of the cone is the collecting duct, and the tip of the cone is called the renal papillae, which are irregular in shape, and some of them are formed by the merger of 2-3 renal cones, so there are only 7-12 renal papillae in each kidney. To summarize, if kidney disease exists, you should seek medical treatment in time.