<unk>  Trans man with two<unk> s after keyhole mastectomy A<unk>  (also called a JP drain) is a closed-suction medical device that is commonly used as a post-operative drain for collecting bodily fluids from surgical sites. The device consists of an internal drain connected to a grenade-shaped bulb or circular cylinder via plastic tubing. The purpose of a drain is to prevent fluid (blood or other) build-up in a closed ("dead") space, which may cause either disruption of the wound and the healing process or become an infected abscess, with either scenario possibly requiring a formal drainage/repair procedure (and possibly another trip to the operating room). The drain is also used to evacuate an internal abscess before surgery when an infection already exists. Clots and other solid matter in the drainage fluid may occlude the tubing, preventing the device from draining properly.
Jackson-Pratt drain
Shirley drain
Mikulicz's drain
Bonanno catheter
Quinton catheter
Bloxsom air lock
Word catheter
Penrose drain