Calcium oxalate stones can be treated with potassium citrate, if the effect is not good, it can be treated with extracorporeal shock wave lithotripsy, percutaneous nephrolithotripsy and open surgery. Calcium oxalate stone is one kind of stone, and the effect of potassium citrate on this kind of stone is still good. During the application of this drug, you must pay attention to drink more water, urinate diligently, and do more jumping exercise, which is conducive to the downward movement of the stones to be discharged. However, if the stone is relatively large, more than 5mm, the application of drugs may be less effective, this time you need to resort to extracorporeal shock wave lithotripsy. Simply put, it is to break the large stones into smaller ones and then expel them from the body. If the stone further increases in size and exceeds 20mm, the effect of the above two methods of treatment is relatively poor, and then you need to resort to surgical treatment. There are two types of surgery, the first one is minimally invasive percutaneous nephrolithotomy and the other one is open surgery.