Fluid on the lungs indicates one of two conditions: pulmonary edema and pleural effusion. Pulmonary edema is a condition that occurs when fluid fills the lungs causing the heart to work harder to pump blood, according to Healthline. A pleural effusion happens when fluid accumulates around the lung, states WebMD.Continue Reading
The primary cause of pulmonary edema is congestive heart failure, states Healthline. Because the heart has trouble pushing blood through the body, blood vessels surrounding the lungs release pressure by secreting fluid into the lungs.
Several conditions, including pneumonia, liver disease, renal disease and cancer, can cause a pleural effusion, says WebMD. The body doesn't release fluid properly, so it accumulates around the lungs and other organs.Learn more about Conditions & Diseases