If it is caused by physiological factors such as intestinal gas interference, no treatment is needed; if it is caused by pathologic factors such as renal atrophy, timely medical treatment is needed, and if renal function is seriously impaired, dialysis and renal transplantation can be performed as prescribed by the doctor for treatment. 1. Physiological factors: some patients may have unclear upper pole of the left kidney due to the interference of intestinal gas, generally no treatment is needed, regular review and observation of the condition will be enough. 2. Pathological factors: If the unclear upper pole of the left kidney is caused by renal atrophy, you need to consult a doctor in time, and further improve the renal CT, renal function and other related examinations to determine the condition. If the renal function is seriously impaired, and there are complications such as acidosis, heart failure and edema which are difficult to be corrected, dialysis treatment is needed, and kidney transplantation is also feasible if conditions permit. If the upper pole of the left kidney is not clear, it is recommended to consult a doctor in time and standardize the diagnosis and treatment under the guidance of the doctor.