Answer:
painless / gross hematuria
Explanation:
Gross hematuria -
It is one of the symptom , of the disease bladder cancer .
It is a painless symptoms where blood , is seen along with urine , during the process of urination , which is a very serious condition .
Hence , in the question , the doctor observes this symptom of gross hematuria to concludes that the man is suffering from bladder cancer .
