<s>[INST] I have been having really bad pains in my lower right side of my back between my rib cage and my butt. I did have surgery on my right kidney 4 years ago and it feels like the same pain I experienced previously. I feel the need to use the bathroom all the time and when I do there is a pinkish color in my urine. I m not really sure what is going on and I m not sure whether i should go in. Any suggestions? [/INST] HelloThanks for query. You have undergone surgery on your right kidney probably for treatment of kidney stone and now getting severe pain in loin and irritation voiding symptoms . Pain in Rt flank and frequent urination is most likely to be due to recurrence of kidney stone. Please consult qualified Urologist for clinical examination and get following basic tests done to confirm the diagnosis.1) Urine routine and culture.2) Ultrasound scanning of abdomen and pelvis. Further treatment or any more tests to be done will depend upon result of these tests and final diagnosis. Chat Doctor.  </s>