Well, many times micro-hematuria is present, which is not visible, although detectible with urinalysis strips.
I still look to see if there is any visible blood in my urine at least weekly - even broke out the urinalysis strips I bought on Ebay the other day as well.
My urologist really frowned on me using the urinalysis strips... oh well..
Chris A.
Diagnosed T1G3 - 3/01/06
37 yo, Seattle, WA