A surgical instrument flow indicator comprises a body defining a flow passage comprising an inlet and an outlet, wherein the inlet is configured to be fluidically coupled to a fluid supply source and wherein the outlet is configured to be fluidically coupled to the surgical instrument. The flow indicator further comprises a flow indication mechanism in flow communication with the flow passage, the flow indication mechanism being configured to transition from a first state to a second state in response to a threshold force exerted on the flow indication mechanism, wherein in the second state, the flow indication mechanism has an arrangement indicating to an observer that the flow indication mechanism transitioned from the first state to the second state.
