Blood test
hCG tumour marker
hCG tumour marker: what it measures, why a doctor orders it, how to prepare, and what a high or low result can mean - with private and NHS access routes in the UK.
Key facts
At a glance
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What it measures: human chorionic gonadotropin used as a tumour marker rather than as a pregnancy test.
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Why it is ordered: to diagnose and monitor testicular germ cell tumours and gestational trophoblastic disease, where the level tracks disease activity closely.
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No fasting or special preparation is needed for this test on its own.
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Reference ranges: in this context any significant level in a man, or a persistent level after pregnancy, is treated as meaningful. Every laboratory publishes its own interval, so the range printed on your report is the one that applies to you.
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A raised result in a man, or persisting after a pregnancy has ended, points towards a germ cell or trophoblastic tumour and needs urgent specialist review. A low result or falling level during treatment is exactly what the team wants to see.
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Results are usually back within 24-48 hours when taken privately, and often the same day for urgent requests.
The full picture
What this test tells you, and how to get it
The hCG tumour marker measures human chorionic gonadotropin used as a tumour marker rather than as a pregnancy test. Doctors most often request it to diagnose and monitor testicular germ cell tumours and gestational trophoblastic disease, where the level tracks disease activity closely. No fasting or special preparation is needed for this test on its own. In this context any significant level in a man, or a persistent level after pregnancy, is treated as meaningful, and reference intervals genuinely differ between laboratories, so no single number should be treated as a universal cut-off - your result is always read against the range printed on your own report. Broadly, a raised result in a man, or persisting after a pregnancy has ended, points towards a germ cell or trophoblastic tumour and needs urgent specialist review, while a low result or falling level during treatment is exactly what the team wants to see, and either finding is interpreted alongside your symptoms, medication and other results rather than in isolation. Results are usually back within 24-48 hours when taken privately, and often the same day for urgent requests.
In the UK there are two routes to this test. Your NHS GP can arrange it free of charge when it is clinically indicated, though getting the appointment, the blood draw and the follow-up discussion can add days to weeks depending on local demand. Privately, the hCG tumour marker can usually be booked within days - through a private GP, a walk-in phlebotomy clinic or a self-request home-testing service - and levels are tracked serially through treatment rather than read once. A private result still deserves a clinician's interpretation: an isolated number without context is where most confusion about blood tests begins.
A quiet reminder
This guide is for information, not medical advice.
Your own clinician knows your history and can tell you which parts apply to you. Reference ranges vary between laboratories - always read your result against the interval printed on your own report. Next review of this page: 2027-09-27.
Frequently asked
Common questions about hCG tumour marker.
Quick, plain-English answers to what people ask us most.
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What is the hCG tumour marker test?
Human chorionic gonadotropin (hCG) is best known as the pregnancy hormone, but it can also be produced by certain tumours, particularly germ cell tumours of the testes or ovaries, and some rarer cancers. This blood test measures hCG levels to help detect, monitor or assess treatment response for these specific tumours.
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Why would a doctor order this test?
It's used when a germ cell tumour is suspected, for example alongside a testicular lump or ovarian mass, and to monitor how well treatment is working or check for recurrence afterwards. Pregnancy must always be excluded first in anyone who could be pregnant, since it's the far more common cause of raised hCG.
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Do I need to prepare for this test?
No special preparation, such as fasting, is usually needed. Your doctor will want to know if there's any possibility of pregnancy, as this is essential context for interpreting the result.
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What happens during the test?
A standard blood sample is taken from a vein in your arm. It's often combined with other tumour marker tests, such as AFP and LDH, when investigating a suspected germ cell tumour.
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Does it hurt or carry any risks?
There's a brief needle prick and occasional minor bruising, but no other significant risks from the blood draw itself.
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How long do results take?
Results are usually available within a few days, though some specialist cancer centres can turn results around faster when urgency requires it.
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What do abnormal results mean, and what happens next?
A raised hCG level, once pregnancy is excluded, can suggest a germ cell tumour, but it needs to be interpreted alongside imaging, examination and sometimes other tumour markers rather than on its own. Your specialist will explain the full picture and arrange any further tests, such as ultrasound, CT scanning or biopsy, as needed.
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How much does this test cost privately, and is it available on the NHS?
It's available on the NHS, typically arranged urgently if a tumour is suspected, or by a specialist for monitoring. Private testing is typically available within days, with results reviewed by a specialist; cost varies by provider.
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Is the hCG tumour marker test accurate and reliable?
As a tumour marker, hCG is very useful for monitoring known germ cell tumours and treatment response, but on its own it can't diagnose cancer, since other conditions, including pregnancy, can also raise it. It's always interpreted alongside imaging and clinical assessment by a specialist.
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How do I book this test privately, and how quickly can I be seen?
If a tumour is genuinely suspected, seek urgent medical assessment rather than routine private booking.