When you have pain in the left center of the back, you need to first identify the cause and provide targeted treatment according to the cause. The main treatment includes non-surgical treatment and surgical treatment. 1. Non-surgical treatment: first of all, the main cause of pain in the middle of the left side of the back is fasciitis, which can be relieved by physical therapy, massage and other ways to ease the pain, and can also be used orally or externally with non-steroidal anti-inflammatory drugs, such as diclofenac sodium, ibuprofen and so on to ease the pain. Secondly, some internal diseases may cause radiating pain, such as coronary heart disease, angina pectoris, pancreatitis, etc. Symptomatic treatment programs such as anti-inflammatory, rehydration, vasodilatation, diuresis, etc., the primary disease can be controlled, radiating pain symptoms will gradually disappear. All of the above medications should be used under the guidance of a doctor, avoid self-medication. 2. Surgical treatment: mainly refers to the emergence of radiating pain of certain medical diseases can not be relieved by strict medical treatment or ineffective cases such as gallbladder stones combined with cholecystitis, acute necrotizing pancreatitis and so on. Surgical methods need to be decided according to the specific primary disease, such as cholecystectomy, abdominal drainage and so on.