In what situation is hysterosalpingography (HSG) primarily used?

Hysterosalpingography (HSG) is primarily used to evaluate fertility issues, making it a crucial diagnostic tool in infertility assessments. This procedure involves injecting a contrast dye into the uterine cavity and fallopian tubes and taking X-rays to visualize any blockages or abnormalities. By assessing the patency of the fallopian tubes and the shape of the uterine cavity, HSG can identify structural or functional issues that may be hindering conception, such as blockages caused by scarring or fibroids.

While it has other uses, such as ruling out certain uterine abnormalities, its main application is in fertility evaluation. The other options, such as inducing ovulation or treating ovarian cysts, are managed through different therapeutic approaches. Diagnosing sexually transmitted infections (STIs) typically involves specific tests that do not include HSG; therefore, it is not utilized in that context. Understanding HSG's role in evaluating fertility is essential for recognizing how it fits into the broader landscape of reproductive health care.