Is blood in urine a sign of bladder cancer?

Needs attention: It is not normal to have even a trace blood in the urine , it could simple infection, or early kidney damage, or even a tumor need to see your physician to find the cause.

Not necessarily : Hematuria can be caused by tumors, infection, foreign bodies (i.E bladder stones), trauma (including procedures) to name a few. It should be evaluated with a good history/physical exam, cystoscopy and an imaging study (usually a ct scan). Urine culture with sensitivity (before cysto) and urine cytology. Depending on findings other tests or procedures may be indicated.