A variety of causes can cause back back pain, including the following: first, due to lumbar spine disease, if there is a lumbar disc herniation or lumbar disc bulge, will compress the nerve root, will bleed back back back pain. If the sciatic nerve is compressed, not only will there be difficulty in the lower back, but there will also be radioactive pain in the buttocks and thighs and other parts of the body. Secondly, back pain may be caused by kidney disease, after acute pyelonephritis or glomerulonephritis, there will be back pain, swelling, uncomfortable and uncomfortable feeling. Thirdly, the back of the waist is difficult for lesbians may also be caused by gynecological diseases, pelvic inflammatory disease, pelvic effusion, cervical erosion and other diseases, will appear after the back of the waist difficult phenomenon. Fourthly, for a few people, it may be caused by ureteral stones, which can be clearly diagnosed through ultrasound and urinalysis.