The kidneys are on either side of the spine in the lower back, one on each side, and are retroperitoneal organs that are part of the body’s urinary system. The kidneys are located on both sides of the spine, and their projected position on the surface of the body is at the intersection of the spine and the twelfth rib on each side, which is also known as the angle of the costal ridge, and in the body, they are located close to the posterior wall of the abdomen, which is located in the posterior part of the peritoneum. The shape of the kidney is a concave oval-shaped lentil-shaped organ, like a fava bean, the concave position is called the renal hilum from the ventral side of the human body to the dorsal side of the renal veins, renal arteries and ureters, in charge of the inflow and outflow of fluids. General human kidney weighs about 150 grams, located on both sides of the waist, near the dorsal side of the abdominal cavity, before the peritoneum separates the stomach, intestines and pancreas, the back of the abdominal wall in front of the kidneys, if the kidneys are moved away from the posterior side of the psoas major and lumbar muscles, and the original location of the kidneys can be seen in subcostal nerves, ilioinguinal nerves traveled through the subcostal nerves. The exact height is about between the twelfth thoracic vertebrae and the third lumbar vertebrae. Because of the liver above the right kidney, the right kidney is lower than the left kidney, and the left kidney is larger than the right kidney. Kidneys in the human body parts as mentioned above, if you feel uncomfortable symptoms in the kidney area, it is recommended to seek medical treatment as soon as possible in a regular hospital, so as not to delay the condition.