In clinical practice, we see swollen eyes in bed, especially in women. The reasons may be the following: first, drinking more water before going to bed, which may lead to increased water retention in the body will lead to swollen eyes, in principle, try to reduce water consumption after 9:00; second, sleeping position, for example, when sleeping in the right side, the eyes on the right side may be below, there will be puffy, unilateral swelling Third, allergies, such as recently eaten certain allergic food or drugs, causing eye swelling. Later on, we need to see if the swelling is accidental, or if the eyes are swollen every morning during the recent period, whether it is all day or only in the morning, until the swollen eyes subside in the afternoon, based on this symptom to decide whether to go to the hospital for consultation. If it is just an occasional condition, you do not need to go to the hospital, but if it has been there for a while, you need to go to the hospital. It is important to clarify whether it is a localized problem in the eyes or a systemic problem in the eyes.