The possible causes of pain above the right back when standing and no pain when lying down include lumbar muscle strain, lumbar dorsal muscular fasciitis, and lumbar disc herniation. 1. Lumbar muscle strain: Lumbar muscle strain may be caused by long-term stooping, sedentary work or catching cold, which may cause pain in the upper part of the right back when standing, but no pain when lying down. 2. Lumbar dorsal myofasciitis: Lumbar dorsal myofasciitis, mostly due to chronic strain, cold, moisture, triggered by the lumbar back fascia and muscle tissue edema, oozing and fibrous changes, resulting in pathological changes in the lumbar back fascia and muscle tissues, which may cause pain in the upper part of the right back when standing up, but no pain when lying down. 3. Lumbar disc herniation: For patients with lumbar disc herniation, the load on the lumbar spine increases significantly when standing, causing pain in the lumbar spine, which radiates to the back, resulting in pain over the back, and no pain when lying down because the pressure on the lumbar spine decreases significantly when lying down, and the symptoms of lumbar spine and back pain are also relieved. Standing right back pain, lying down there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.