《伤寒论·平脉法》
脾胃之邪相互搏击，各持其强，自相伤害，这就好象用手握住刀口，因而产生创伤。
持实击强，痛还自伤，以手把刃，坐作疮也。
Substantial evil in both stomach and spleen fight against each other, each holding on to its strength, mutually causing damage, this is like grabbing a knife blade with one's hand, consequently producing an injury.