The first one is the familiar lumbar disc herniation. Once injured, it is also fatal. Moreover, lumbar disc herniation will not only feel pain, but also the waist can't bend, so it can only stay upright.
So once you get lumbar disc herniation, you can basically lie flat on the bed and do nothing.
The second is lumbar muscle strain. Many people will confuse this pain with lumbar disc herniation. In fact, these are two different diseases. Although lumbar muscle strain is also very painful, it is generally not as serious as lumbar disc herniation.
Some people are more tolerant of pain. Although they have lumbar muscle strain, they can still go to work. But I just can't bend over and I can't do any work.
The third is more serious diseases, such as cancer. Because cancer will metastasize in the later stage, if it metastasizes to the bone, it will feel obvious pain.
The fourth is fracture. If the cervical vertebra is injured, it may cause back pain. Even if it is not near the waist and abdomen, the pain may spread to the waist and even lower limbs. Don't be confused.
In addition to the above situation, the remaining reason may be kidney problems. Kidney calculi, which happens most often, makes people bend over with pain.
If you see a man 1.8 meters high in the hospital, he is in great pain, lying in bed crying, then it's probably kidney calculi. Besides kidney calculi, ureteral calculi can also make people feel terrible pain.