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
[{'content': 'Most constant and persistent feature of Ca bladder is: \nSelect and explain. \nA. Increased ferquency, B. Haematuria, C. Recurrent UTI, D. Pain Abdomen', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Hematuria is the presenting symptom in 85-90% of patients with bladder cancer. It may be gross or microscopic, intermittent rather than constant.\nSymptoms of vesical irritability are IInd most common symptoms. These are -frequency, urgency, dysuria.\nPain (secondary to clot retention, tumor extension into retroperitoneum or ureteral obstruction or metastasis to bony pelvis) may rarely occur.', 'role': 'assistant'}]