A<unk>  is a protrusion of a tissue, structure, or part of an organ through the muscular tissue or the membrane by which it is normally contained. The<unk>  has 3 parts: the orifice through which it<unk> tes, the<unk> l sac, and its contents. The contents, usually portions of intestine or abdominal fatty tissue, are enclosed in the thin membrane that naturally lines the inside of the cavity. a<unk>  has a potential risk of having its blood supply cut off (becoming strangulated), and the contents may become necrotic due to the lack of oxygen supply.
A<unk>  may be likened to a failure in the sidewall of a pneumatic tire. The tire's inner tube behaves like the organ and the side wall like the body cavity wall providing the restraint. A weakness in the sidewall allows a bulge to develop, which can become a split, allowing the inner tube to protrude, and leading to the eventual failure of the tire.
Hernia
Abscess
Adhesion 
Volvulus
Wound dehiscence
Thrombus
Transistasis
Internal bleeding