Masturbation more usually does not lead to left side kidney pain, left side kidney pain is commonly caused by urinary stones, infections, tumors or peripheral lesions caused by involving pain. According to the cause of the targeted treatment, the main treatment modalities for drug treatment, surgical treatment and so on. 1. Urinary stones: a common cause of renal colic, can drink more water, increase activity to promote the discharge of stones, severe pain can be antispasmodic and analgesic symptomatic treatment, if necessary, surgical treatment; 2. Urinary tract infections: such as pyelonephritis, inflammation in the kidney, when the infection is serious, it may cause low back pain, kidney pain, oral levofloxacin, cefuroxime and other anti-infective treatment. 3. Urological tumor: Tumor invasion of renal parenchyma may cause kidney pain, which can be treated with surgery or radiotherapy. 4. Peripheral tissue lesion: it can also cause renal pain, the cause should be identified and the primary disease should be treated actively. All of the above medications should be used under the guidance of a doctor, avoid self-medication. The left side of the kidney pain may also have other causes, it is recommended that patients go to the regular hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.