Hello , I Have Today Been Fitted With Catheter Due

Hello , I have today been fitted with catheter due to inability to pass water, but just emptied first bag, and surprised to see it with blood in it and bits of green matter.

I had swollen testicle two months ago and was given Cytofloxacin - does this affect the situation. Before the catheter was fitted today the urine was clear and and tests showed no infection

Can you advise please ? thank you ...........James