'pressure point' definitions:

noun

Any of several points on the body where the pulse can be felt and where pressure on an underlying artery will control bleeding from that artery at a more distal point

noun

Where problems or difficulties are likely to occur; "a key pressure point in the controversy was the building permit"

noun

An area on the skin that is highly sensitive to pressure; "you must know the pressure points in order to administer shiatsu"