There is no clinical data on how many days it takes for a stone to enter the bladder and be expelled. Whether or not it can be expelled and the exact time of expulsion are related to factors such as the size of the stone and the presence or absence of underlying bladder disease. If the bladder stone is small and there is no underlying bladder disease, you can drink a lot of water, jumping exercise and other general treatment to promote the discharge of stones, if necessary, you can also choose to use potassium citrate, allopurinol and other medication can be discharged, the specific time of discharge has obvious individual differences, can not be generalized. If the bladder stones are large or if there are underlying diseases such as bladder cancer or bladder outlet stenosis, the bladder stones usually cannot be discharged through general treatment and medication, so extracorporeal shock wave lithotripsy, transurethral lithotripsy, and open surgery can be chosen to remove the stones. If it is clear that the stone has entered the bladder, patients are advised to drink plenty of water and do more exercise, which can promote the expulsion of the stone. If uncomfortable symptoms occur, please do not self-medicate, it is recommended to go to the hospital for diagnosis and treatment under the guidance of a doctor.