Patient: ultrasound: kidney: right kidney diameter and morphology is normal, left kidney size 10.4*4.6CM, irregular morphology, multiple cystic echogenicity is detected in the parenchyma of both kidneys, right larger 1.2*1.1CM, left larger 3.1*2.7CM, left renal parenchyma is about 0.7CM thick, echogenicity is enhanced, right renal parenchyma echogenicity is moderately low, uniform distribution, multiple dots are seen in the calyces of both kidneys. The right renal parenchyma is moderately hypoechoic and evenly distributed, with multiple dotted echogenicity in both renal calyces, about 0.2-0.3CM in size. Ureter: Bilateral ureter is not dilated. Bladder: good filling, smooth wall, good intravesical sound. Prostate: 1.3*3.5*3.6 cm in size, regular shape, and ring-shaped strong echogenicity at the junction of inner and outer glands. Ultrasound: diffuse damage to the left renal parenchyma, no echo in the left renal pelvis – left hydronephrosis? The above is my father’s medical history, please ask the doctor to analyze how to treat and medicate? The Urological Department of Shanghai Huashan Hospital Ding Qiang: Hello! Your father’s case is a small kidney cyst that does not require treatment, but should be followed up regularly. It is recommended to take lithotripsy flush for conservative treatment and to drink more water. The echogenic area in the left kidney needs to be clarified whether it is a mass or fluid, and it is recommended that a CT examination of the kidney and an intravenous pyelogram be performed. As for whether or not the prostate enlargement needs to be treated the key is to see if there are symptoms.