A hysterosalpingogram (HSG) is an X-ray dye test used to diagnose problems related to fertility. These issues include blocked fallopian tubes and an irregularly shaped uterus. During an HSG, an X-ray records images of your uterine cavity and fallopian tubes while they’re filled with a special dye.

When is a hysterosalpingogram performed ?

Your provider will plan your procedure so that it happens during the first two weeks of your menstrual cycle — after your last period has ended but before you ovulate. This timing reduces the chance that you’ll be pregnant or menstruating during the procedure.

When would a hysterosalpingogram be needed ?

Couple who have trouble conceiving despite one year of unprotected intercourse and with normal ovulating cycles. An HSG can help your provider see if your fallopian tubes are open or blocked. Open fallopian tubes allow a clear path for conception to occur. Sperm travel through fallopian tubes to fertilize an egg. The fertilized egg (embryo) travels through your fallopian tubes to your uterus (womb), where it can grow and develop into a healthy foetus.

Blocked fallopian tubes prevent these processes from happening and are a leading cause of infertility.