Post-mortem erection - Definition

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A post-mortem erection (or terminal erection) is a phenomenon observed in certain male cadavers, particularly after an execution or suicide by hanging. This is explained by the compression exerted by the rope on the cerebellum and the spinal cord, and the resulting blood flow towards the lower regions of the body, including the sexual organs. A similar phenomenon is observed after certain violent deaths, such as by poisoning or by a bullet in the brain.