The common causes of left side back pain include lumbar spine problem, left side kidney disease, pancreatic disease, infectious disease and so on.
1. Lumbar spine problems caused by lumbar disc herniation, lumbar muscle strain, long-term poor posture, etc. can present with soreness and pain in the left posterior lumbar region. Lumbar disc herniation and lumbar muscle strain, etc. are common in middle-aged and old-aged people and people who have been sedentary for long periods of time, so you can go to neurology department for lumbar spine MRI examination. Correcting bad sitting and standing postures can improve lumbar pain.
2. If the kidneys have problems, also can cause lumbar pain symptoms, the kidneys are located on both sides of the lumbar vertebrae, when the kidneys appear nephritis, stones and other diseases, can be manifested as lumbar pain. However, the symptoms are usually on both sides at the same time, one side of the symptoms of kidney disease is relatively rare.
3. The pancreas is located in the left lumbar vertebrae, if the pancreas has acute or chronic inflammation, it can cause the left side of the waist to appear soreness.
4. In addition to lumbar spine, kidney and pancreas diseases that can cause left-sided low back pain, herpes zoster can also lead to low back pain. The herpes vesicularis virus is prone to invade the neurons of the spinal nerve roots and is distributed according to the direction of the nerve fibers. If in the early stage of herpes zoster just invades the left side of the nerve fibers, it is manifested as soreness in the left side of the back.
When the above symptoms occur, it is recommended that the patient go to neurology, gastroenterology, nephrology, to identify the cause in time and target treatment.