Lower eyebag puffiness, also known as lower eyelid puffiness, can be divided into physiological eyelid puffiness and pathological eyelid puffiness, and the causes of puffiness are usually indistinguishable from each other, so here is a unified explanation according to eyelid puffiness. I. Physiological eyelid puffiness: If you sleep in an improper posture that presses on the eye area or if you don’t get enough sleep, it can cause poor blood circulation around the eye area, resulting in eyelid puffiness; if you drink a lot of water before bed, it can also cause eyelid puffiness due to water and sodium retention. Second, pathological eyelid swelling: 1, drug allergy: such as allergic conjunctivitis, when the eyes are attacked by allergens, or when the whole body has an allergic reaction, it may lead to eyelid swelling; 2, cardiovascular disease: such as coronary heart disease, heart failure, hypertension and other diseases, which can cause impaired blood circulation in the body, leading to the appearance of puffiness around the eyes, etc.; 3, kidney disease: due to the decline in kidney function, water and sodium retention, nephritis Patients with increased capillary permeability and other factors can lead to edema in the body, especially puffiness around the eyes and lower limbs is most obvious. If the cause is physiological, the symptoms will usually improve after changing the lifestyle habits. If it does not improve for a long time and is accompanied by other uncomfortable symptoms, it is recommended to go to the hospital to find out the cause of eye puffiness and treat it actively.