Symptoms of lumbar strain include localized swelling, lumbar pain and restricted movement. 1. Localized swelling: the soft tissues of the waist will become congested and swollen due to damage to the capillaries under the skin after the strain, and the skin in the swollen area will become sensitive as a result. 2. Lumbar pain: it may be caused by muscle swelling, joint dislocation or ligament tear, etc. The degree of lumbar pain is positively related to the degree of lumbar strain. 3. Restricted activities: Because of the injury to the lumbar muscles, ligaments, joints and nerves and other tissues, the muscles and ligaments will reflexively spasm, tense up or even harden, and the activities such as lumbar flexion, extension and rotation will be significantly restricted. With the above symptoms, you must consult a doctor in time and actively cooperate with the professional doctor’s treatment.