The causes of getting up in the morning with swollen eyes are divided into physiological and pathological factors. Physiological factors are mostly due to excessive drinking before bedtime or improper sleeping posture that affects facial blood circulation, resulting in eyelid edema; pathological factors, such as eye inflammation, allergies, and systemic diseases, can also lead to swollen eyes in the morning. I. Physiological factors such as drinking too much water before going to bed or improper sleeping posture affect the blood return to the face, thus leading to swollen eyes in the morning. In addition, eye bites by mosquitoes can also lead to swelling of the eye, usually unilateral eye swelling, can be accompanied by itching. Second, pathological factors 1, eye inflammation: eye inflammation can lead to eye edema. In addition to eyelid edema, patients can show symptoms such as localized redness, swelling, heat and pain in the eyes, commonly known as blepharitis, also known as mydriasis. In addition, swelling of the eye can also occur if the patient has lacrimal sacculitis, lacrimal glanditis, orbital cellulitis, etc. Eye swelling caused by eye disease requires active anti-inflammatory treatment. 2. Allergy: An allergic reaction of the eyelid skin to an allergen or an allergic reaction of the skin of the head and face that involves the eyelid can lead to eye swelling. The main manifestation is sudden redness and swelling of the eyes, accompanied by itching and burning sensation, which requires cold and wet compresses of saline, as well as glucocorticoid drops in the conjunctival sac for relief as prescribed by the doctor; 3. Systemic diseases: such as acute and chronic nephritis, heart disease, hypothyroidism, etc., can lead to swollen eyes, which require examination at specialist clinics such as nephrology or cardiology, and drug or even surgical treatment after diagnosis.