Police are investigating a violent brawl between four women in Sebastopol.
Officers believe one of the women has stabbed the victim with a knife on Albert Street before the three fled around 11pm Thursday.
The victim - aged 19 - has been treated for a minor facial injury.
Passers-by at the time reported seeing the woman covered in blood, near the corner of Tristan Drive.
Police believe the parties are known to each other.
An investigation into the incident is ongoing.