Patient: Hello, Dr. Liu! My father is 56 years old and has been suffering from kidney stones for many years, often with symptoms such as lumbar pain, which he has been enduring. Recently, he was examined and learned that there are multiple stones in both kidneys, located in the lower and middle section, the right kidney is up to 9x6mm, the left kidney is up to 13x10mm, and there is a cystic dark area of 11x11mm in the middle of the left kidney with clear borders, along with an enlarged prostate. My father is the backbone of the family, in order not to worry about us, stone disease has been endured for many years, now I also grew up, can no longer see him dragging on like this, I would like to ask the experts, he is such a situation is considered serious? Is it possible to use percutaneous nephrological technique or other treatment options? I look forward to hearing from you, Dr. Chen. Thank you very much! Specialist: Generally, the treatment of stones depends on the size, location and kidney function. 2.0 cm or more kidney stones or multiple kidney stones can be broken by minimally invasive percutaneous nephrolithoscopy, which can be discharged in 6 days after the operation if it goes well (one operation is successful), and the cost is about 16-17 thousand, without major surgery. Patient: Thank you very much.