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The prognosis of the condition depends on the size of the stone. Smaller ones ( < 5 mm ) are left without treatment but placing on fat free diet and a little bigger (5 to 10mm ) need medications to dissolve. If >1cm or multiple stones surgery is needed .The lag time depends on the size from here. Fat free diet can prevent worsening to some extent.
Sooner the removal of the stone better is the prognosis, It will be difficult if ones jaundice
sets in due to bileduct /cystic duct ( passage canals of bile) block by the stone.
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