Common reasons for eyelid swelling in the morning: First, there may be morning eyelid swelling after staying up late the night before without good rest or drinking too much water the night before. The second common cause of swollen eyelids, such as women in the premenstrual period due to changes in hormone secretion will produce edema, generally after the end of menstruation symptoms can be relieved. Thirdly, idiopathic edema. Generally, idiopathic edema does not have a clear cause, and the symptoms may be relieved after rest. The fourth pathological factor is kidney disease, which is most common in clinical practice. Patients with kidney disease may have swollen eyelids in the early stage, and then the whole face may become swollen. In severe cases, swelling of the lower extremities or even swelling of the whole body can occur. Common kidney diseases such as glomerulonephritis and renal insufficiency.