Weakness of the neck and back muscles: which are the main support in the spine, there may be a sliding of the cartilage between the cervical and lumbar spine, and the weakness of the neck and back muscles may be due to genetic or lifestyle reasons, i.e. the unhealthy and normal lifestyle of work for some, lack of exercise and obesity And spinal injuries. Herniated disc: Herniation occurs when the outer strip of the disc is torn or cracked and the gel-like substance leaks out, putting pressure on the spinal canal or nerve roots. In addition, the nucleus secretes chemicals that irritate the surrounding nerves, leading to inflammation and pain.