I have had back pain for several days. Then thought that I was passing a kidney stone. I went to the doctor and she put me on a muscle relaxer and flow max and in an antibiotic. The next day I went and had a ultrasound done. the ultrasound found a small subcentermeter parapelvic cyst in both kedneys. can that cause bad back pain?
Hi, Yes, they cause back pain.  Please consult your local doctor for further management.  Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor.