Fertility Glossary

Hysterosalpingo-contrast sonography (HyCoSy)

An ultrasound test that checks the fallopian tubes using a contrast fluid.

Fertility testing

HyCoSy avoids X-rays and is an alternative to HSG. It can cause period-like cramping.

Also known as: HyCoSy, HyFoSy, tubal patency test

Related United Kingdom guides

HyCoSy Scan

Sources

NHS — Infertility
NICE CG156 — Fertility problems: assessment and treatment

Last reviewed: 23 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.

Related terms

Hysterosalpingogram (HSG)

Hysterosalpingogram — X-ray of the uterus and tubes.

Blocked fallopian tube

A fallopian tube that sperm or eggs cannot pass through.

Explore in-depth guides

Learn more with Antega's fertility guides and articles.

Browse guides