Pulmonary edema in general drinking water is not contraindicated, but can not drink a lot of water, and need to be based on the amount of urine to determine the amount of water, generally should be less than the amount of outflow. Pulmonary edema mainly refers to the abnormal entry of capillary fluid into the alveoli or interstitium, for patients with pulmonary edema, the clinical need to limit the amount of fluid intake, so that the amount of intake is less than the amount of outflow, so patients with pulmonary edema should be based on the amount of urine to decide how much water to drink, if the renal function is normal, generally should not be restricted to drink water, drinking water to reach the daily normal physiological needs of 1500ml can be. Drinking a large amount of water may lead to pulmonary edema aggravation, can not blindly drink a lot of water, if there are symptoms such as dyspnea should be timely medical treatment as soon as possible.