pressure point
From Longman Dictionary of Contemporary EnglishRelated topics: Humanpressure pointˈpressure point noun [countable] 1 SERIOUS SITUATIONa place or situation where there may be trouble a pressure point for racial tension2 HBHa place on the body that can be pressed, either to stop bleeding or to help make you feel betterExamples from the Corpuspressure point• Some or the political personalities saw it as a new political pressure point on the Westminster government.• As she held him she searched for and found the pressure point in his armpit, and stopped the gush of blood.