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Wellness & Longevity · Tumor Marker Test

Tumor markers need context—they are not an answer for every cancer

Tumor markers may support diagnosis, monitoring or treatment assessment in some contexts, but an abnormal value does not always mean cancer and a normal value does not exclude all cancer.

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Blood samples in a laboratory for tumor marker testing

General health information

What is Tumor Marker Test?

A Tumor Marker Test is a blood test for tumor markers—proteins or chemicals produced by cancer cells or by the body in response to cancer—to help assess risk, screen or monitor treatment.

The result cannot confirm a cancer diagnosis on its own and must be interpreted with clinical information and other relevant tests.

Goals of the service

  • Define why a marker is being ordered
  • Choose a marker that fits the context
  • Interpret it with other information
  • Plan confirmation or referral when needed

CLINIC-CONFIRMED TESTS

Common tumor markers

A Tumor Marker Test is a blood test for proteins or chemicals produced by cancer cells or by the body in response to cancer. Results may support risk assessment, further investigation or treatment monitoring according to the individual clinical context.

AFP

Used as part of liver-cancer risk assessment and disease monitoring.

CEA

Used alongside other information when assessing colorectal and gastrointestinal cancers.

PSA

Used in prostate-cancer risk screening for men, with age, symptoms and individual risk considered by the doctor.

CA 125

Used to support ovarian-cancer assessment according to symptoms, history and indication.

CA 15-3

Used to monitor breast-cancer treatment or assess recurrence in an appropriate clinical context.

An elevated result does not confirm cancer, and a normal result cannot exclude cancer on its own. Interpretation requires symptoms, history, examination and other relevant tests.

General health information

Who should begin with an assessment?

We begin with a clear clinical question before selecting tests or a program for the individual.

  • 01

    A specific indication based on history or disease monitoring

  • 02

    A clinician needs it alongside other information

  • 03

    A prior result needs systematic follow-up

  • 04

    Understanding of false-positive and false-negative limitations

General health information

Assessment and planning

Our clinicians consider the marker, reason, symptoms, family history, previous values and supporting tests together with medical history, medicines and individual needs.

01 — History and goals

Review symptoms, conditions, medicines, supplements, allergies, family history and health goals.

02 — Assess necessity

Select only tests or services with a reason, and explain limitations before proceeding.

03 — Interpret and follow up

Review results, response or adverse effects, with confirmation or referral when needed.

General health information

Preparation and follow-up care

Before the service

  • Share conditions, medicines, supplements, allergies, pregnancy or breastfeeding
  • Ask about fasting or medicines; never stop prescribed medicine on your own
  • Bring previous results and a product list when available

After the service

  • Follow instructions specific to the actual test, medicine or product
  • Keep results and arrange interpretation in the context of your health
  • Contact the clinic for unusual or severe symptoms
Lobby inside Beautier Clinic at Rama 9

The Beautier Clinic approach

THE BEAUTIER WAY

Health care built around information that matters to you

At Beautier Clinic, we select programs according to your history, symptoms, results and health goals—not one formula for everyone.

01

Assessment first

Programs are selected by history, symptoms and goals rather than one formula for everyone.

02

Connected planning

Results, health and lifestyle are considered together, with follow-up when needed.

03

Support in four languages

Our team coordinates in Thai, English, French and Chinese.

FAQ

Frequently asked questions: Tumor Marker Test

01

Does a high tumor marker mean cancer?

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Not always. It must be interpreted with history, symptoms, imaging and other tests.

02

Does a normal marker rule out cancer?

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No. Some cancers do not elevate markers and many markers are not suitable for general screening.

Content updated25 August 2026

THE BEAUTIER WAY

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