Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Contact the treating team promptly for increasing pain, worsening bleeding, foul-smelling urine, or symptoms that are not improving.
Seek urgent care after treatment if you cannot urinate, develop fever or chills, pass large blood clots, have persistent vomiting, or become very unwell.
Mild burning and a small amount of blood may be expected for a short time after some procedures, but symptoms that are severe or worsening need assessment.
Follow-up should cover both recovery from treatment and prevention of another stone.
The schedule depends on the procedure, stone type, and underlying urinary problem.
At routine follow-up, a clinician may review the stone analysis, check for infection, and measure whether the bladder is emptying properly.
Repeat imaging or cystoscopy is not required for everyone.
It may be recommended when symptoms return, the underlying cause remains, or there is a higher risk of recurrence.
Report renewed difficulty urinating, repeated infections, or visible blood rather than waiting for the next routine visit.
The article also says
After stone removal, follow the care team's instructions about fluids, activity, catheter care, and restarting medicines.
Continue any plan for managing prostate obstruction, nerve-related bladder dysfunction, catheter use, or another identified cause.
Every sign above is quoted from the sofidex article on Bladder stones. If you are not sure, err upward — it is always reasonable to be checked.