Boyfriend has a knife wound on his leg above his knee. how does he treat it?

Depends on…: Type of wound (puncture or laceration), depth of wound (skin & fat only, muscle, tendon, bone), type of bleeding (venous oozing or arterial spurting), clean or dirty knife, status of tetanus boosters. Direct pressure to control bleeding; to er if heavy or spurting; er if wound gaping (needs sutures to heal well); to er to check for tendon injury, get tetanus booster, ± antibiotics to prevent infx.