Question

A concerned male athlete brings a clear red urine to the physician's office

Answer 1

Yes, normally red urine indicates "hematuria," or blood in the urine. This is due to RBCs if blood leaking into the urine and can have multiple causes.

There is another condition called rhabdomyolysis, that is severe, but it normally produces an orange-colored urine, and it due to strenuous exercise and dehydration.