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Swelling and pain is never normalNormal saline flush. Some people do get a hematoma after a cath but that's pretty obvious. Perhaps it's not related to the cath, just a coincidence but I do hope someone can find the cause and help your husband. I'm female but just thinking of the discomfort he's having makes me cringe. Perhaps his family doctor didn't find anything on the scans but there's got to be a reason for the swelling. I do hope you get an answer soon.