The blood I had was clots in my urine off and on. I am very prone to cyst and have/had endometriosis...I thought I just had cyst rupturing a couple of times last year so I never got it checked out. Earlier this year I started having the clots every other week. it would last about a day or 1/2 a day. I knew it was not menstral since I had a total hysterectomy in 2000. So I decided I needed to figure out what was going on. Thank Goodness!!! When I finally got into my GYN and URO...I don't think they saw any blood in my urine. So it can be a tricky thing. I have friends that told me that they were told they would always have blood in their urine so they don't worry. but I convinced them to still get it checked out since they have or currently smoke...they told me they would. Apparently there are other things that are not cancer that can continously cause blood in the urine...but I want them to take an extra step to confirm it is not cancer.
There may be no blood visible to the naked eye, but under the microscope the doctor may see plenty. When I first went to the urologist thinking I had a kidney stone brewing, I actually apologized to him for what I thought was a waste-of-time visit--my urine sample looked clear as a fine chardonnay. He told me that he saw quite a bit of blood under the microscope, so I wasn't being a hypochondriac after all.