Leg a press a pit is a manifestation of edema, can be given diuretics symptomatic relief of edema, but more importantly, to identify the causes of edema, for the cause of treatment. When edema occurs in the legs, excessive body fluids are retained in the tissue interstitial space, and localized swelling can occur, and the manifestation of a pit when pressed. There are many clinical diseases that can cause edema, physiological edema and pathological edema. Female pregnancy, menstruation can appear certain physiological edema, in addition, such as walking for a long time, there may also be a slight edema of the legs, this situation usually does not need special treatment, can be appropriate rest, elevate the legs, edema symptoms can be gradually relieved. Pathological edema is common in heart failure, chronic kidney disease, cirrhosis and other diseases, severe malnutrition can also lead to edema, so it is necessary to identify the cause of the disease and treat the cause. Heart disease patients with the progression of the disease can appear heart failure performance, cardiac diastolic blood can not return in time, can appear in the body circulation stagnation, edema performance. Need to give cardiac, diuretic, vasodilator drugs to treat, commonly used drugs are digoxin, furosemide and so on. Chronic kidney disease patients with decreased renal function, glomerular filtration barrier function is impaired, protein is filtered out of the body in large quantities, patients can appear hypoproteinemia, blood colloid osmolality is reduced, resulting in edema, at this time the need for timely treatment of primary renal disease, improve hypoproteinemia to relieve edema. Cirrhosis requires active treatment of the primary disease; malnutrition requires timely correction of nutritional status. If leg edema persists, it is necessary to consult a doctor in time to clarify the cause of the disease and then treat it.