<s>[INST] Hi doc,I am a 22 year old female,Past 2 months I have been getting UTI frequently. When I gave my urine for routine test it showed plenty or 15-20 pus cells 2-3 times. But all this times cutlture test didnt detect any. As per my doctors advise I have done an ultrasound scan and a uroflowmetry test. Everything has been normal and scan result impression was UTI with insignificant post void volume. All my doctor could say after analysing the report was I have got a high capacity bladder of 1 litre and I have to void withing 2 -3 hrs which I am doing regularly even before visiting him. I am drinking almost 4 litres of water everyday. My doctor has now prescribed me Niftran and a citralka syrup. I have taken all these before and despite I have developed the symptomes of UTI again. But doctor asked me to take the same medicine again. Please help me with this [/INST] Hello, Urine should not be accumulated in the urinary bladder more time. This creates a good sides for the bacteria to grow and multiply rapidly. This is what that is causing you trouble by repeated UTI. It is basically cystitis which is nothing but infection of the urinary bladder. This infection may ascend or descend to cause infection to other organs of the urinary tract. Backflow of urine may cause HY Chat Doctor. Regular voluntary voiding of urine is advised. Alkalinize the urine so that bacterial growth is prevented. </s>