Sagging eye bags may be a manifestation of kidney deficiency, but kidney deficiency is not the only cause of sagging eye bags, other clinical reasons may also lead to sagging eye bags. There are physiological and pathological causes of sagging under-eye bags. Physiological sagging under-eye bags are mainly related to bad living habits, excessive staying up late and drinking too much water before going to bed. In addition, insufficient sleep time, inability to get deep sleep and myopic patients who do not wear glasses correctly may lead to sagging bags under the eyes. Western medicine believes that pathological sagging eye bags are mainly related to metabolic diseases or kidney diseases, while Chinese and Western believe that they are related to kidney deficiency and spleen deficiency and dampness. For the above causes of sagging eye bags, in order to reduce the symptoms, patients should improve their lifestyle habits, go to bed early and wake up early, ensure the sleep time and sleep quality, and avoid drinking water before going to bed. If the sagging eye bags are not relieved by improving lifestyle, patients should seek medical attention for systematic examination and targeted treatment.