Which of the following is a common risk factor for developing PID?

The development of Pelvic Inflammatory Disease (PID) is often associated with certain risk factors, one of the most notable being the use of an intrauterine device (IUD). While IUDs are effective forms of contraception, they can increase the risk of PID, particularly during the first few weeks after insertion. This risk arises because the insertion process can introduce bacteria into the upper reproductive tract, leading to infection.

Using hormonal contraceptives or having regular gynecological check-ups generally does not increase the risk of PID. In fact, regular check-ups can aid in early detection and management of conditions that might predispose someone to PID. Meanwhile, a history of endometriosis does not directly correlate with an increased risk for PID in the same way that IUD use does. Instead, endometriosis is a separate condition that involves the lining of the uterus growing outside of it and can lead to different complications but is not a direct risk factor for PID. Therefore, IUD use stands out as a significant risk factor for the development of Pelvic Inflammatory Disease.