In 2011, there were 90,000 visits to physicians' offices for PID in the United States; there are ~70,000-100,000 hospitalizations related to PID annually.

• Risk factors for PID include cervicitis, BV, a history of salpingitis or recent vaginal douching, menstruation, and recent insertion of an intrauterine contraceptive device (IUD).
• Oral contraceptive pills decrease risk.