Hi. I Have Two Questions About The Lithotripsy My Husband

Hi. I have two questions about the lithotripsy my husband had three days ago. 1. What are the red marks from on his midsection that look like giant O-rings? 2. If he had virtually no pain and no blood passing for the first two days after the procedure, but then has a dull pain in his bladder section all day today with some blood passing, is that normal? Yes, he does have a stent.