The latest investigation started around 10:30 Sunday night when Shreveport police got a call from the 2600 block of Lillian street in the Queensboro area.
They say a couple had gotten into an argument which eventually turned physical, with both the man and woman slapping each other.
According to police, during the fight, a knife fell from the man's pocket and the woman used it to stab him in the neck.
Police have not said how badly he was hurt or what charges, if any, the woman is facing.
In Springhill another woman is facing charges for allegedly killing her boyfriend.
Police there say Candice Malone shot 23 year old Terrence Henderson during an argument inside their apartment on Moore street Sunday afternoon.
They could decide Monday exactly what charges she'll face.