Vaso-occlusion

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The term vaso- occlusion describes the closure of (blood) vessels .

This can happen through foreign bodies that have got into the bloodstream , through the body's own "material" (for example during blood clotting or embolisms ) or through external pressure.

If a vessel contracts with the help of the muscle layer surrounding it, it is called vasoconstriction. This can also lead to complete vaso occlusion if the vessel lumen disappears completely.