Could be a lumbar disc herniation. It is recommended to go to the hospital for examination and diagnosis. Don't do heavy physical labor and strenuous exercise. Don't sleep on the spring mattress. Be sure to avoid working and studying in one posture for a long time, especially bending over for a long time. Take a rest every 1 hour for about 10 minutes. Traction, physical therapy, infrared ray, massage and massage can be performed. Seriously, you can find this Dr. Qiu, but you need to make an appointment in advance. It is suggested to do the flying swallow exercise: lie on the bed, lift both lower limbs alternately, lift both lower limbs at the same time, lift the upper body backwards, and lift both ends of the body off the bed at the same time. Do the above actions for more than ten times each, and exercise for 30 minutes every day.