If a young person has pain in the lower back after standing for a long time, it is mostly due to excessive stress on the muscles of the lower back after standing for a long time, which can cause spasm, contraction and edema, resulting in significant soreness and pain in the lower back. But this pain will be significantly reduced when changing the body position or resting in bed. Therefore, after this condition occurs, you must pay more attention to keep warm, avoid prolonged standing and repeated bending activities, and properly strengthen the exercise of lumbar muscle strength in daily life to avoid the symptoms of lumbar pain caused by prolonged standing in the later stage. During the period of pain, you can apply heat to the lumbar area to release muscle spasm and promote blood circulation in the lumbar area, thus promoting the decreasing of edema, which is very helpful for the relief of lumbar pain.