This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Most constant and persistent feature of Ca bladder is: 
Select and explain. 
A. Increased ferquency, B. Haematuria, C. Recurrent UTI, D. Pain Abdomen
B: Haematuria
Answer: B: Haematuria 
Explanation: Hematuria is the presenting symptom in 85-90% of patients with bladder cancer. It may be gross or microscopic, intermittent rather than constant.
Symptoms of vesical irritability are IInd most common symptoms. These are -frequency, urgency, dysuria.
Pain (secondary to clot retention, tumor extension into retroperitoneum or ureteral obstruction or metastasis to bony pelvis) may rarely occur.