A groove behind the waist may be physiological factors, but also may be caused by lumbar disc herniation and other pathological factors.
1. Physiological factors: the normal human spine and the muscles on both sides of the formation of the groove is called the spinal groove, the spinal groove is located in the middle of the back, belongs to the normal human structure. Whether the spinal groove is prominent or not can be determined by the individual’s physique, and in the absence of obvious scoliosis, there is generally no need for any special treatment.
2. Lumbar disc herniation: the most common pathological factor is lumbar disc herniation. Lumbar disc herniation rupture of the annulus fibrosus, nucleus pulposus protrudes to the back, and after compression of the dural sac or nerve root, there will be weakness or collapse of the lumbar muscles, and the patient will also have a groove in the middle of the waist.
Sometimes it is not possible to accurately determine the cause based on the manifestation of a groove at the back of the waist alone, and it is necessary to combine the characteristics of the medical history and other examination results to make an accurate judgment, and it is recommended to clarify the cause of the disease under the guidance of a doctor.