Right renal blisters are a manifestation of renal cysts. It is generally believed that renal cysts originate from renal tubular diverticula. The increasing number of renal tubular diverticula with age, up to three diverticula per collecting duct, may explain the trend of increasing incidence of simple renal cysts with age. Renal cysts are benign tumors that can be unilateral or bilateral, one or more, with bilateral occurrences being rare. They are usually located deep in the cortex or medulla, with a diameter of about 2 cm, and there are also cysts with a diameter of 10 cm. Renal cysts can cause irreversible damage to the kidneys by pressing on the kidneys for a long time. Smaller renal cysts with no symptoms can be observed, if the cysts are larger, it is recommended to go to a regular hospital in time to avoid delay.