What causes pain in the left lower back?

Left lower back pain may be caused by fasciitis, left kidney stone, pyelonephritis and other factors.
1. Fasciitis: the disease may be related to cold and dampness, chronic strain, trauma and other factors. After the appearance of fasciitis in the muscle tissues of the left lumbar region, the patient’s left lumbar region will have diffuse soreness and pain, sometimes accompanied by muscle tension and pressure pain, and so on.
2. Left kidney stone: the disease is related to metabolic abnormalities, urinary tract infection, drugs and other factors, stone stimulation of the left renal tissue and the left ureter may cause pain in the lower back, and renal colic will occur during the attack.
3. Left-sided pyelonephritis: the disease is very generally due to microbial infection, upstream infection and other factors, due to inflammation stimulation of renal tissues, the patient may experience symptoms of low back pain, usually dull pain or soreness.
Left-sided back pain may be related to lumbar muscle fibrous tissue inflammation, left-sided lumbar transverse process fracture and other factors, and it is recommended that the patient consult the doctor in time to find out the cause of the disease.