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
Renal tuberculosis is characterised by - 
Select and explain. 
A. Loin pain, B. Painful hematuria, C. Sterile pyuria, D. Constitutional symptoms
C: Sterile pyuria
Answer: C: Sterile pyuria 
Explanation: None