A drainage catheter is a medical device used to remove excess fluid or pus from a specific area of the body. It is typically a thin, flexible tube that is inserted into a body cavity, such as the abdomen or chest, to help alleviate pressure or prevent infection. These catheters can be used in various medical situations, including after surgery or in cases of injury. The catheter is connected to a drainage bag, allowing the fluid to be collected and monitored. Proper placement and care of the drainage catheter are essential to minimize the risk of complications, such as infection or blockage. Healthcare professionals, such as doctors and nurses, are trained to manage these devices effectively.