Possible causes of eyelid swelling and back pain include kidney disease, eye disease and back disease. 1. Kidney disease: such as nephrotic syndrome, nephritis and other patients, due to renal basement membrane damage caused by a large amount of proteinuria, which leads to a decrease in plasma proteins, and cause body fluids into the loose tissues triggering edema, such as eyelid edema. Most patients with inflammatory renal disease will be accompanied by symptoms of low back pain. 2. Ocular and lumbar diseases: Ocular diseases such as erysipelas, blepharocysts, etc. can also cause ocular edema, and when combined with lumbar diseases such as lumbar disc herniation, lumbar spinal stenosis, lumbar pain symptoms can occur at the same time. In addition to the above reasons, blepharitis, cardiogenic edema combined with lumbar muscle strain can also cause eyelid swelling, lumbar pain and other symptoms. If the above symptoms occur, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment.