Abstract: Cesarean scar pregnancy (CSP) is one rare form of the ectopic pregnancies. The incidence of CSP is increasing because the rates of cesarean delivery has increased in recent years. Themechanism of this rare condition may be explained with myometrial invasion. Endometrial andmyometrial separation, scarring due to cesarean section scar, endometrial and myometrial line disruption are the main basis for the pathophysiology of caesarean scar pregnancy. Painless vaginalbleeding, abdominal pain, pain secondary to abdominal bleeding are the most common symptoms.It is a life–threatening emergency that must be rapidly diagnosed and quickly treated. A 38-yearsold woman was admitted to the gynecology outpatient clinic because of vaginal bleeding. A cesarean scar pregnancy was diagnosed with transvaginal and abdominal ultrasonography. Systemicmethotrexate therapy was applied and pregnancy was terminated with suction curettage under theguide of ultrasonography. In this case, we present a case of cesarean scar pregnancy that was diagnosed and treated in our clinic.