Ultrasound check of the fallopian tubes (HyCoSy)

HyCoSy · HyFoSy · fallopian tube patency test · tubal ultrasound with contrast · sono-HSG

A special fluid is put into the uterus through a thin tube, and ultrasound shows whether it flows through the fallopian tubes.

When a couple has been trying for a long time to have a baby and the tubes need to be checked to see if they are open.

⏱ Duration: usually 15 to 30 minutes; you are often told the result right away

Be sure to tell your doctor

Cycle day. It is usually done in the first half of the cycle, after your period and before ovulation. Your doctor will give you the exact days.
Swabs. Before the procedure, you are often asked for a vaginal swab for germs and infections. The clinic will give you the list.
Pain relief. Sometimes you are advised to take a painkiller ahead of time. Your doctor will say what and when.
Pregnancy. In this cycle, you are usually advised to use protection until the procedure. Ask your doctor.

You lie on the gynecology exam chair
The doctor inserts a speculum and cleans the cervix with antiseptic
A thin soft catheter is placed in the cervix
An ultrasound probe is put into the vagina
The fluid is slowly given through the catheter while the doctor watches the screen
The catheter and probe are taken out

Unpleasant when the speculum and catheter go in
A pulling pain in the lower belly, like period cramps. It usually passes in a few minutes
Sometimes slight dizziness. Tell the doctor

Sit for 10 to 15 minutes before you leave
Light discharge or spotting for 1 to 2 days can happen
You are usually advised to avoid baths, pools, and sex for a couple of days. Ask your doctor
You get the report right away or within a day

Does it hurt?

It is usually bearable: like strong period cramps for a few minutes. You can ask the doctor about pain relief ahead of time.

How is this better than an X-ray of the tubes?

There is no radiation, and no iodine contrast is needed. But your doctor decides which method suits you.