Tina M. Provost, 53, of Pittsfield, was arrested after police say she stabbed her boyfriend in the abdomen.
Pittsfield responded to reports of a domestic disturbance involving a knife at around 7 p.m.Saturday.
The 30-year-old victim was transportted to Berkshire Medical Center for emergency surgery.
He remains hospitalized, but in stable condition.
Provost was arrested and charged with one count of Aggravated Assault & Battery with a Dangerous Weapon
She is currently being held by the Pittsfield Police Department.