Whether there is any effect after the left kidney is removed is related to whether the remaining right kidney is functioning normally or not. Kidneys have strong compensatory ability, normal people have two kidneys, and when one kidney is missing, if the remaining side of the kidney is functioning normally, it can basically satisfy the body’s needs, and there will not be any obvious effect. If the remaining kidney itself has renal insufficiency, the patient will have a series of renal failure manifestations and effects, which may include back pain, fatigue, hypertension, edema, heart failure, nausea, vomiting, gastrointestinal bleeding, and platelet function abnormality, as well as internal environmental disorders, such as metabolic acidosis, hypocalcemia, hyperphosphatemia and so on.