why would you even tell that to someone?
if blood comes out when you pee it could just be kidney stones that will pass or an easy to cure infection. also, it might be kidney cancer
so yeah, bad advice
Of course it could always be something else. But if it is the stomach flu there is nothing they can do. The stomach virus does not have a cure. I'm not telling him don't bother going cause it is pointless, I'm telling other people in this thread that if it is the virus, to stop posting "go to the doctor" because the doctor cannot cure that. From my experience having this virus, as well as knowing the virus is spreading everywhere right now, is reason to suspect what he has is the virus.
Urinating blood can be a laundry list of complications. However most of them present more symptoms as well as require further testing. This isn't like Web MD where everyone convinces themselves they have a terminal illness. Doctors will look for simple solutions to illness depending on the symptoms. If I walk in with vomiting and an upset stomach for a day during flu season, the doctor isn't going to go "well first we need to perform an upper endoscopy, then we are going to view it with an ultrasound and perform some stool tests". No, they are going to say "You most likely have the stomach flu, keep hydrated and come back in a few days if it persists".
Of course it can be something more. It can always be something more. But not everything is loving cancer. The doctor would say the same thing I said, at least for the first few days. Now if it lasts longer then a few days. That is cause for concern.