The causes of right kidney parenchymal hyperechoic nodule include renal cyst, renal malformation tumor or renal cancer. 1. Renal cyst: it is mainly caused by the increase of renal tubular diverticulum, which can be manifested as lower back and abdominal pain, abdominal mass or hematuria, etc. Generally, the phenomenon of substantial hyperechoic nodule in the right kidney can be observed through ultrasound examination. 2. Kidney misshapen tumor: it belongs to benign hereditary disease, the cause of which is still unclear, patients generally do not have any adverse reactions, a small number of patients may have symptoms such as lumbar and abdominal distension and pain, etc. Substantial hypoechoic nodules of the right kidney can be observed during ultrasound examination. 3. Kidney cancer: mainly due to genetic factors, obesity, high blood pressure or smoking, etc., the symptoms of patients can be manifested as hematuria, lumbar pain and abdominal mass, etc., and the phenomenon of substantial hyperechoic nodule in the right kidney can be observed in ultrasound examination. There are many other causes of right renal hyperechoic nodules, it is recommended to go to the hospital in a timely manner, after clarifying the cause of the disease, under the guidance of a professional doctor for standardized treatment.