It is necessary to distinguish between simple renal cyst and polycystic kidney. Simple renal cyst does not damage the structure of the kidney, and renal function is usually normal, so the prognosis is relatively good. If it is a small double kidney cyst caused by a simple renal cyst, no special treatment is required, unless the cyst is large in size and has a diameter of more than five centimeters, and has compression symptoms, it can be treated by puncture and drainage of the renal cyst under the guidance of B-ultrasound, or by laparoscopic decompression of the renal cyst. If it is a small double kidney cyst caused by polycystic kidney, it will often destroy the structure of the kidney and cause damage to the renal function, so it should be actively treated. The most commonly used drug in clinical practice is tolvaptan, which can inhibit the enlargement of cysts and delay the progress of renal function damage, but its side effects can also lead to liver function damage.
