The phrase "pleural effusion" in medicine refers to the accumulation of excess fluid around the lungs. The area between these two layers, which includes the lungs and the chest cavity, is referred to as the pleural space. A small amount of fluid is typically present to aid in the smooth passage of the lungs during breathing. But if something goes wrong, like a disease or medical condition, too much fluid could accumulate in this area. Because of this, it could be more difficult for the lungs to fully expand when we breathe, which may result in issues like breathing difficulty, chest discomfort, or coughing. Here you can find symptoms and causes of pleural effusion in Pakistan at imchospital.