Patients wake up with swollen face and eyes every morning, which may be caused by drinking too much water, eye allergies, eye infections or renal diseases. If patients drink a lot of water or cry before going to bed, it may appear the next day after waking up, patients may appear puffy eyes, which is a physiological phenomenon. Generally do not need special treatment, patients can through the eyes of cold compresses, rest and other ways to promote eye swelling subside. If allergic patients use or contact with allergens that can cause allergic symptoms, such as pollen, hair, etc., patients may experience swelling of the face and eyes, as well as itchy eyes and other uncomfortable symptoms. If patients have eye infections, causing bacterial conjunctivitis, blepharitis, etc., a large number of inflammatory mediators increase vascular permeability, tissue fluid leakage, which can cause patients’ eye swelling. In addition, patients suffering from renal diseases, because of renal dysfunction, can appear nephrogenic edema, resulting in ocular edema. It is recommended that patients with significant eye swelling should seek prompt medical attention to assess their condition and follow the doctor’s instructions for treatment.