According to your description, hydronephrosis should be caused by obstruction of renal pelvis stones. For such a large stone, it is basically impossible for drugs to expel stones, but it will aggravate hydronephrosis. Surgery is not necessary for those who are suitable for gravel. Surgical trauma is large and the recovery time is long. No matter how you treat it, it will recur if you don't prevent it well.

Mistakes in the treatment of lithiasis;

1, no matter how big, take medicine to remove stones;

2, gravel will hurt the kidney, not clean will aggravate;

3, the operation is cleaner than gravel;

4. Surgery can be reimbursed. At present, the highest reimbursement of the new rural cooperative medical system in this region is about 60%, and the highest reimbursement across regions is more than 30%.

Personally, I suggest you consider gravel first. If it is not feasible, the operation can be divided into traditional open surgery: the skin scar is long and obvious, and the risk is relatively high. The estimated cost is about 1 ten thousand yuan. Minimally invasive, that is, percutaneous nephrolithotomy, with small scar, will be more beautiful than traditional surgery, but the cost is higher, which is expected to be around 15000.