Men with left-sided back pain may be caused by ureteral stones, lumbar disc herniation, pyelonephritis and other causes, different causes of different treatments, commonly used treatments are general treatment medication, surgical treatment. 1. Ureteral stones: patients can use non-steroidal analgesic and anti-inflammatory drugs as prescribed by the doctor, such as indomethacin tablets, diclofenac sodium extended-release tablets, etc., which can play an analgesic role, but also opioid analgesic drugs as prescribed by the doctor, such as tramadol tablets, fentanyl tablets, etc., and surgical treatment as prescribed by the doctor, such as extracorporeal shock wave lithotripsy. 2. Herniated lumbar intervertebral disc: patients can follow the doctor’s instructions to use meloxicam tablets, ibuprofen extended-release capsules and other non-steroidal anti-inflammatory analgesic drugs to relieve pain, if the patient has muscle spasms, but also the use of muscle relaxants, such as Chlorzoxazone tablets, tizanidine tablets, etc. Conservative treatment is difficult to alleviate the disease, but also follow the doctor’s instructions to carry out surgical treatments such as nucleotomy, intervertebral fusion, and so on. 3. Pyelonephritis: Commonly used drugs for patients with pyelonephritis are fluoroquinolones, such as levofloxacin tablets, ciprofloxacin tablets, etc., and aminoglycosides, such as gentamicin granules, kanamycin tablets, etc.; if the patient has urinary tract deformity or obstruction, surgical procedures can be carried out to remove the cause of the disease. Specific treatment also need to go to the hospital to confirm the diagnosis, under the guidance of the doctor for treatment, the patient should go to the hospital on a regular basis for re-examination, the doctor can adjust the treatment program according to the situation of the re-examination, do not blindly use drugs.