Follow up for invasive mole and choriocarcinoma

Invasive mole, also called persistent trophoblastic disease, and choriocarcinoma are very rare types of cancer that can occur after pregnancy. They are types of gestational trophoblastic disease.

Read more about invasive mole and choriocarcinoma

What does follow up involve?

You have follow up at one of the UK specialist centres.

You have regular urine tests, blood tests or both to check your level of human gonadotrophic hormone (hCG). You have these tests during your treatment, and for some years afterwards. 

After treatment, you usually have tests every week for the first 6 weeks. These become less frequent over time. And you see your specialist team about 6 weeks after treatment. They will explain what tests you need and how often you need to have them. 

Your follow up depends on factors such as:

• the risk score of your disease

• the treatment you have had

• the results of your hCG tests

Tests might also vary slightly depending on your treatment centre.  

The specialist centre will send you a pre paid kit for your tests which you post back to the centre for checking. If you are having blood tests, your GP surgery may be able to do them for you. They should send the blood sample, with your urine sample if you've done one, to the specialist centre. 

Your treatment centre will send you the kits when you need them. So you must let them know if your contact details change.

Future pregnancy

Your periods might stop or become irregular during chemotherapy. But for most women, they return to normal after a few months.

It is important not to get pregnant until your doctors say it is safe. If you have had chemotherapy treatment, UK guidelines recommend that you wait for 12 months from when you finished the chemotherapy before trying to become pregnant. You can use most types of contraception unless your doctor advises you not to. Your doctor and specialist nurse will talk to you about the best form of contraception for you. 

If you do become pregnant before they recommend it, it is very important to let your specialist team know. Your hCG levels will go up with a normal pregnancy, so they won’t be able to monitor your GTD using your hCG levels. After you have had your baby you will need to have hCG tests.

Read more about fertility, contraception and pregnancy after GTD