I am a ureter stone has been done minimally invasive surgery, I would like to ask how long drainage

After minimally invasive ureteral calculi surgery, drainage tube is placed, mainly to facilitate the discharge of broken stones and oozing blood, generally need to be placed for about a month. Patients should drink plenty of water during the recovery period to promote the discharge of stones. Complete recovery after minimally invasive surgery takes about 2-3 months.