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. 2015 Feb 6;4(1):111–117. doi: 10.5527/wjn.v4.i1.111

Table 2.

Indications for active stone removal of kidney stones

Kidney stones
Stone growth
Patients at high risk for stone formation
Obstruction caused by stones
Infection
Symptomatic stones (e.g., pain, macrohematuria)
Stones ≥ 15 mm
Stones < 15 mm, if observation is not the option of choice
Patient preference
Comorbidity
Social situation of the patient (e.g., profession or travelling)