Pain above the tailbone and below the waist mostly refers to muscle pain. If the nature of the pain is soreness, it is likely that there is a lumbar muscle injury, so you can wear a proper lumbar brace for external fixation, avoid prolonged sitting, prolonged standing, bending over to bear weight, and also give proper lumbar massage and hot compresses. If the pain is unbearable, you can give ibuprofen or meloxicam to relieve the pain. If the lumbar pain is not relieved, you can go to the local hospital for lumbar spine MRI and double kidney ultrasound to exclude the pain caused by lumbar disc herniation and kidney stones, and if it is simply a case of lumbar muscle strain, it can be completely cured.