Stones are not painful and need to be treated. If you have stones, you must go to the hospital for an ultrasound to determine the size of the stones, the location of the stones, the number of stones, and whether they are causing dilated fluid in the kidneys and ureters. Just because the stones are not painful does not mean that they will not continue to grow or move. It is important to treat the stones early to get them out of the body. Especially for many stones in the renal calyces or ureter, it is stuck in the calyces and ureter and does not move and does not cause pain, so that if it is stuck in a certain area for a long time, the stone will gradually increase in size, leading to increased fluid accumulation in the kidney and eventual kidney failure. Therefore, stones should be disposed of early as soon as they are found to prevent further damage to kidney function.