Objective: To describe the clinical characteristics of placenta accreta patients undergoing surgery in National Hospital of Obstetrics and Gynecology. Subject and method: A retrospective and descriptive analysis of pregnant women with placenta accreta diagnosed and treated at National Hospital of Obstetrics and Gynecology in 5 years (from January 2007 to December 2011). Result: 40.0 percent of the patients had a history of 1st cesarean section, 20.0 percent experienced 2 times. 53.0 percent had been pregnant three or more times. Vaginal bleeding was the most common sign (39.0 percent). 10 percent of the pregnant women had infiltrating bladder placenta but only 3 percent experienced vaginal bleeding and 1 percent had premature rupture of membranes. Vaginal bleeding most commonly occurred at 31-34 weeks of gestation (accounted for 49.1 percent)
at 26-30 weeks was 22.6 percent, or or = 35 weeks (13.2 percent). Times of vaginal bleeding were 1 (66.0 percent), 2 (20.8 percent), and or = 3 (13.2 percent). Conclusion: Clinical characteristics of placenta accreta were very complicated with main signs of abdominal pain and vaginal bleeding.