A closer look at the uterine cavity and fallopian tubes

A HyCoSy (short for Hysterosalpingo-contrast-sonography) is a safe and efficient procedure used to investigate infertility by looking at the cavity of the uterus and the fallopian tubes during a transvaginal ultrasound scan.

If either the cavity or the tubes are damaged, it may prevent you from becoming pregnant or maintaining a pregnancy.

Who is a HyCoSy suitable for?

We recommend a HyCoSy investigation for the majority of women contemplating a pregnancy through fertility treatment. It gives us reassurance that the treatment options we recommend are targeted and appropriate to you. It can give us critical information that may be missed by a conventional ultrasound.

How is the HyCoSy performed?

A small tube is inserted into the womb through the cervix. Water and then contrast are gently injected into the womb and the tubes whilst a transvaginal ultrasound is performed.


What do we learn from a HyCoSy?

We get all the information that we would get from a normal transvaginal ultrasound. Additionally, we learn more about the internal shape of the womb and whether or not the fallopian tubes are open.

Is the HyCoSy painful?

The level of pain experienced during the HyCoSy varies from person to person. During the procedure, you may experience some discomfort and have a cramping sensation like period pain. We advise our patients to take two paracetamol about 30 minutes before your HyCoSy procedure. No anaesthetic is required for this procedure and it takes about 15 minutes to complete.