Hello dear
Warm  welcome to Healthcaremagic.com
I have evaluated your query in details  .
*  Blood can be from the urinary infection or catheter induced trauma .
*  Primary guidelines for better outcome
Consume plenty of liquids .
Cranberry sachet once daily in a glass of  drinking water , organic citrus  fruits , 
vitamin C  supplements  help a lot .
Necessary antibiotics , urinary alkalisers , anti inflammatory  medications  
require  prescription of your doctor  ( who may decide depending upon your 
evaluation with required blood and  urine  tests ) .
Keep the genitals clean with antiseptic  liquids , dry .
Wear loose , clean , cotton inner wears .
Avoid  exposure  to  excess heat .
Avoid 
smoking , alcohol  if  using .
Keep  blood sugar  under  control .
Avoid  sexual intercourse  ( if  active ) till recovery .
Hope this  will help  to clear your doubt   .
Wishing you fine recovery .
Regards .
Dr. Bhagyesh ( MS , FMAS - consultant surgeon )