Drainage tubes are medical devices used to remove excess fluid or air from a patient's body. They are often placed in areas where fluid accumulation can occur, such as after surgery or due to injury. The tubes help prevent infections and promote healing by allowing the body to drain unwanted substances. These tubes can be made from various materials, including silicone or rubber, and come in different sizes depending on their intended use. Common types of drainage tubes include chest tubes for lung issues and drainage catheters for abdominal surgeries. Proper placement and care are essential for their effectiveness.