my brother has been having a lot of blood when urinating. off and on for weeks now. today he is passing clots. what could it be?
It could be a number of different things, something as minor as a UTI, kidney stones, bladder infection or something pretty major like kidney failure or cancer. I would say go to the ER immediatly so they can run tests. If you go to you family doctor it'll take longer to have the tests annalyzed where at the hospital they can have it all done right there rather than sending it out.