Capillary leak syndrome (CLS) refers to a group of clinical syndromes such as tissue interstitial edema, hypoproteinemia, hypovolemic shock, and acute renal ischemia due to capillary endothelial cell damage caused by various pathogenic factors and increased vascular permeability, resulting in large amounts of plasma protein and water infiltration into the tissue interstitial space. One of the symptoms is extravasation of body fluid. The main clinical manifestation is systemic edema, with the conjunctiva, extremities and trunk predominating in the initial stage; in the late stage, edema of internal organs predominates; the serious consequences of CLS are alveolar edema, restricted gas exchange, and tissue hypoxia, which further aggravate capillary injury and eventually lead to multi-organ dysfunction. Although the appearance of edema in capillary leak syndrome is serious and may be reversed and restored by active treatment, improper treatment may also be fatal. So how should we pay attention to it in our normal life? 1, keep optimistic and happy mood Long-term mental tension, anxiety, irritability, pessimism and other emotions will make the balance of cortical excitation and inhibition process out of balance, so you need to maintain a happy mood. 2, life moderation pay attention to rest, work and rest combination life in an orderly manner, maintain an optimistic, positive, upward attitude towards life is of great help in the prevention of disease. To do regular tea and meals, survival and living in a regular manner, not overworked, cheerful, and develop good habits of life. 3, a reasonable diet can be more intake of high fiber and fresh vegetables and fruits, balanced nutrition, including protein, sugar, fat, vitamins, trace elements and dietary fiber and other essential nutrients, meat and vegetables, food varieties diversified, give full play to the complementary role of nutrients between foods, is also very helpful in the prevention of this disease.