How is your husband? What other symptoms are present?If a stone that is blocking urine flow is left untreated it can cause damage to the kidney or ureter. If the stone is relatively small (5 mm or less) pain medications and increased oral fluid intake may allow the stone to pass on its own. However, if the stone is large, or continues to cause problems or appears infected, a referral to a urologist who may elect to perform a procedure during which a small tube is placed in your ureter via a scope. This will allow the urine to pass and may allow the ureter to dilate, letting the stone pass as well. It is best that you discuss the management plan with his doctor to ease any anxiety. Take care and so keep us posted.