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Cancer Antigen 125 (CA 125)

The CA-125 test measures a tumour marker in blood that helps in monitoring ovarian cancer and assessing related conditions.

1 parameters 1 Days Blood Yes

About Test

The Cancer Antigen 125 (CA-125) Test measures the level of CA-125 protein in your blood. CA-125 is a tumour marker that may be elevated in certain cancers, especially ovarian cancer.

This protein is produced by cells lining the ovaries, uterus, and other internal organs. Normally, only small amounts are present in the bloodstream.

Higher CA-125 levels may indicate ovarian cancer, but they can also rise in non-cancerous conditions such as ovarian cysts, endometriosis, menstruation, or pregnancy.

This test is mainly used to monitor cancer treatment and detect recurrence, rather than as a standalone screening test.

Why This Test

The CA-125 test is used to evaluate and monitor conditions related to ovarian cancer.

Monitor Cancer Treatment

Helps track how well treatment is working in patients diagnosed with ovarian cancer.

Detect Recurrence

Used after treatment to check if cancer has returned.

Evaluate Symptoms

May be advised if symptoms like pelvic pain, bloating, or abnormal bleeding are present.

Assess High-Risk Individuals

Recommended for individuals with a family history or genetic risk of ovarian cancer.

Support Diagnosis

Used along with imaging and other tests to evaluate suspicious findings.

Who Should Take

This test is recommended primarily for women in specific situations.

You may need this test if you:

Have been diagnosed with ovarian cancer
Are undergoing or monitoring cancer treatment
Have symptoms like pelvic pain, bloating, or abnormal periods
Have a strong family history of ovarian or related cancers

Preparation

No special preparation is required before taking the CA-125 test.

Fasting Requirement

Fasting is not required.

Before the Test

Inform your doctor if you are menstruating, pregnant, or have any known conditions, as these may affect results.

Medications

Let your doctor know about any medications or ongoing treatments.

Parameters

CA-125 protein

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Overview

Frequently Asked Questions

Q. What is CA-125 test used for?

The CA-125 test is mainly used to monitor ovarian cancer treatment and detect recurrence.

Q. Is CA-125 a cancer test?

It is a tumour marker test, but it cannot confirm cancer on its own. Additional tests are required.

Q. Is fasting required for CA-125 test?

No, fasting is not required.

Q. Can CA-125 be high without cancer?

Yes, levels can rise in conditions like menstruation, pregnancy, fibroids, or endometriosis.

Q. Is CA-125 used for screening?

It is not a primary screening test and is mainly used for monitoring diagnosed cases.

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