Swelling of the eyelids after getting up in the morning may be caused by hypothyroidism and other pathological factors; it may also be caused by physiological factors such as poor living habits. 1. Pathological factors (1) Hypothyroidism: Swelling of the eyelids after waking up in the morning may be caused by hypothyroidism. In the presence of hypothyroidism, in addition to swelling of the eyelids, the patient may also have hair loss, loss of appetite, low body temperature, slow heart rate, slow reaction and other manifestations. (2) Other pathological factors: besides hypothyroidism, vasoneurotic edema, nephritis, nephrotic syndrome and other pathological factors can also lead to eyelid swelling after waking up early. 2. Physiological factors Poor living habits: Poor living habits may also lead to eyelid swelling, mainly due to eating more salt-containing food and drinking too much water before going to bed. It is especially important to correct these bad habits, especially the problem of over-salted diet. If you wake up in the morning with puffy eyelids that do not improve over a long period of time and are accompanied by other discomforts, it is important to seek medical attention in a timely manner.