Waking up in the morning with swollen face and eyes may be related to drinking more water before going to bed, allergy, nephritis and other reasons. 1. Drinking more water before going to bed: If patients drink more water before going to bed, it may lead to water accumulation in the body, waking up with swollen face and eyes in the morning, which can be relieved by themselves without special treatment. 2. Allergy: If patients have contact with allergic substances, they may wake up with swollen face and eyes in the morning, and it is recommended that patients try to avoid contact with allergens to avoid aggravation of the condition. 3. Nephritis: Nephritis usually refers to inflammatory lesions in the kidneys, which can easily lead to the weakening of the metabolic function of the kidneys, causing the water in the body can not be discharged normally, resulting in waking up in the morning with a swollen face and swollen eyes. Wake up in the morning face eye swelling may also have other reasons, a long time can not be relieved or accompanied by other discomforts, it is recommended to go to the hospital in a timely manner, consult the physician’s guidance, improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.