Patients with lumbar muscle strain are primarily caused by long-term engagement in heavy physical activities involving the waist, poor posture, chronic strain, etc. The main symptoms include lower back pain and restricted movement, which alleviate after rest and worsen after physical exertion. To manage lumbar muscle strain, it is crucial first to rest and develop correct habits for using the lower back, avoiding long-term engagement in heavy physical activities of the waist while also paying attention to techniques used. If symptoms are severe, medication such as non-steroidal anti-inflammatory drugs can be used, along with adjunct treatments like heat therapy, massage, or block therapy. These methods can actively contribute to symptom improvement and recovery. (Please use medications under the guidance of a doctor to avoid blind self-medication.)