Suffering from nephropathy presenting with calcified foci in the left kidney is not a manifestation of renal failure. Calcification is a pathological change that is the result of abnormal deposition of calcium salts. Calcification refers to the deposition of calcium salts in necrotic tissues or tissues that are about to be necrotic, foreign bodies, commonly found in inflammation, tuberculosis, thrombosis, scar tissues and concomitant calcium and phosphorus metabolism disorders. Renal failure is the end manifestation of all nephropathies, a group of syndromes in which renal excretion of endocrine dysfunction, water, electrolyte, acid-base balance disorders and symptoms of various systems occur. With edema, nausea and vomiting, skin itching as the main manifestations, accompanied by blood creatinine, urea elevation, renal ultrasound can be no obvious changes in the early stage, and the later stage can have the manifestation of bilateral renal volume reduction. Those who suffer from nephropathy with calcified foci in the left kidney are recommended to go to the hospital for consultation and standardized diagnosis and treatment under the guidance of professional physicians.