Cancer Screening in Nigeria: 8 Tests You Should Know About

Cancer remains an important public health concern, but detecting certain cancers early can improve the chances of successful treatment. For individuals and families in Nigeria, understanding the available cancer screening tests is an important step towards making informed healthcare decisions.

Cancer screening in Nigeria includes tests and examinations that help identify certain cancers or precancerous changes before symptoms develop. Depending on your age, sex, family history, medical history and other risk factors, a healthcare professional may recommend specific screening tests to help protect your health.

At Isalu Specialist Hospital, we encourage individuals to take a proactive approach to their health through appropriate medical consultations, preventive healthcare and early evaluation of concerning symptoms.

In this guide, we explore eight cancer screening tests you should know about, who may benefit from them and when to discuss screening with your doctor.

What Is Cancer Screening and Why Is It Important?

Cancer screening involves testing people who do not have symptoms of a particular cancer to identify possible disease at an early stage or detect precancerous changes.

Some screening tests can detect abnormalities before they develop into cancer, while others help identify cancer when treatment may be more effective.

The benefits of appropriate cancer screening include:

• Early detection: Some cancers can be identified before symptoms appear.
• Prevention: Certain tests can detect precancerous changes that may be treated before cancer develops.
• Informed healthcare decisions: Screening helps patients and doctors determine whether further investigation is necessary.
• Timely treatment: Detecting certain cancers early can expand treatment options and improve outcomes.

However, not every cancer has an effective routine screening test. Screening can also produce false-positive or false-negative results, so tests should be selected according to individual risk and established medical guidance.

 8 Cancer Screening Tests You Should Know About

Different cancers require different screening approaches. Here are eight important cancer types and the tests or examinations that may help detect them.

1. Breast Cancer Screening

Breast cancer screening helps identify possible breast cancer in people who do not have noticeable symptoms.

Common screening methods include:

• Mammography: An X-ray examination of the breast that can identify suspicious changes, including small abnormalities that may not be felt.
• Clinical breast examination: A healthcare professional examines the breasts and surrounding areas for unusual lumps or changes.
• Breast ultrasound: Imaging that may be used to assess a breast lump or investigate particular findings. It is not a universal substitute for mammography.
• Breast MRI: May be recommended alongside mammography for selected individuals at significantly increased risk.

The appropriate screening method depends on age, breast symptoms, family history and personal risk factors.

People should seek medical assessment if they notice a new breast lump, nipple discharge, changes in breast shape or skin dimpling, even if their last screening result was normal.

2. Cervical Cancer Screening

Cervical cancer develops in the cervix, the lower part of the uterus. Persistent infection with certain high-risk types of human papillomavirus (HPV) is the main cause of cervical cancer.

Cervical cancer screening can identify high-risk HPV infections or abnormal cervical cells before they progress to cancer.

Common screening methods include:

• HPV test: Detects high-risk HPV types associated with cervical cancer.
• Pap smear: Examines cervical cells for abnormalities that may require further evaluation.
• Visual inspection with acetic acid (VIA): A trained healthcare professional applies a dilute acetic acid solution to the cervix to identify suspicious changes.

The World Health Organization recommends HPV DNA testing as the preferred primary screening method where available and appropriate.

Women should discuss when to begin screening and how frequently to repeat it with a healthcare professional. Recommendations may differ depending on age, HIV status, previous results and national guidelines.

HPV vaccination is also an important preventive measure, but vaccinated individuals may still need cervical cancer screening.

3. Prostate Cancer Screening

Prostate cancer affects the prostate gland, which is part of the male reproductive system. The risk generally increases with age, and family history can also influence a person’s risk.

In Nigeria, men should discuss prostate cancer risk assessment with a healthcare professional, particularly as they grow older or have a family history of the disease.

The principal screening test is:

• Prostate-specific antigen (PSA) blood test: Measures the level of PSA, a protein produced by the prostate gland.

An elevated PSA result does not automatically mean that a person has prostate cancer. Other prostate conditions can also increase PSA levels.

Depending on the result and clinical assessment, a doctor may recommend additional investigations. A digital rectal examination may be part of a clinical evaluation, while prostate MRI and biopsy are generally used for further assessment rather than as routine screening tests.

The decision to undergo PSA screening should consider age, risk factors, potential benefits and possible harms.

Men who experience difficulty urinating, blood in their urine or semen, or persistent urinary changes should seek medical assessment rather than relying on screening alone.

4. Colorectal Cancer Screening

Colorectal cancer affects the colon or rectum. Some colorectal cancers develop from abnormal growths called polyps, which may be detected and removed before they become cancerous.

Common screening methods include:

• Faecal immunochemical test (FIT): Detects small amounts of hidden blood in stool.
• Faecal occult blood testing: Checks stool for blood that may not be visible.
• Colonoscopy: Uses a flexible camera to examine the inside of the colon and rectum and allows doctors to remove certain polyps or collect tissue samples.

The choice of test depends on age, risk factors, available services and personal medical history.

For example, many international guidelines recommend routine screening for average-risk adults beginning at age 45, but the appropriate starting age in an individual case should be discussed with a healthcare professional and guided by applicable local recommendations.

People with a strong family history of colorectal cancer, previous polyps or certain inherited conditions may need earlier or more frequent screening.

Persistent changes in bowel habits, rectal bleeding, unexplained weight loss or ongoing abdominal discomfort require medical evaluation.

5. Lung Cancer Screening

Lung cancer develops in the lungs and may not cause noticeable symptoms in its early stages.

Low-dose computed tomography (LDCT) is a screening method that uses a low dose of radiation to create detailed images of the lungs.

It is generally recommended only for selected individuals at high risk, particularly those with a substantial history of cigarette smoking who meet applicable age and smoking-history criteria.

Routine chest X-rays are not an effective substitute for LDCT lung cancer screening in eligible high-risk individuals.

Your doctor can help determine whether screening is appropriate based on your smoking history, age and overall health.

People experiencing persistent cough, coughing up blood, unexplained weight loss or ongoing chest pain should seek prompt medical assessment rather than waiting for a screening appointment.

6. Liver Cancer Screening

Liver cancer screening is particularly relevant to people with certain risk factors, including chronic hepatitis B or C infection, liver cirrhosis and other conditions associated with an increased risk of liver cancer.

Tests that may be used for surveillance in selected high-risk individuals include:

• Liver ultrasound: Produces images of the liver to identify suspicious abnormalities.
• Alpha-fetoprotein (AFP) blood test: Measures a protein that may be elevated in some people with liver cancer.

Depending on the individual’s risk and applicable clinical guidance, these tests may be performed at regular intervals, often every six months for eligible patients.

AFP is not sufficiently accurate to diagnose or exclude liver cancer on its own. Ultrasound and blood-test findings may require additional imaging or other investigations.

People with chronic liver disease should speak with their healthcare professional about an appropriate surveillance plan.

7. Oral Cancer Examination

Oral cancer can affect parts of the mouth, including the tongue, lips, gums and inner lining of the cheeks.

An oral examination may help identify suspicious changes, particularly in people with risk factors such as tobacco use, heavy alcohol consumption or certain HPV infections.

An oral examination may involve checking for:

• Persistent ulcers or sores that do not heal.
• Unusual red or white patches inside the mouth.
• Lumps or thickened areas.
• Persistent unexplained pain or difficulty swallowing.
• Unusual changes affecting the tongue, gums or lips.

A dentist or other qualified healthcare professional can assess suspicious findings and determine whether further investigation, including a biopsy, is needed.

Routine oral examination has not been established as an effective population-wide screening programme for every person. However, persistent or unusual oral changes should always be evaluated.

8. Skin Cancer Examination

Skin cancer develops when abnormal cells grow in the skin. Some forms can spread to other parts of the body if not identified and treated appropriately.

A skin examination involves checking the skin for unusual growths, sores, changing moles or other suspicious abnormalities.

During an examination, a healthcare professional may assess:

• New growths or moles.
• Changes in the size, shape or colour of an existing mole.
• Sores that do not heal.
• Lesions that bleed, itch or change over time.
• Areas of skin that look noticeably different from surrounding areas.

A dermatologist or other qualified clinician may use a dermatoscope to examine a suspicious lesion more closely. A biopsy may be necessary to determine whether it is cancerous.

Routine skin cancer screening has not been shown to reduce deaths across the general population. Nevertheless, people who notice suspicious skin changes should seek medical assessment, particularly if they have a personal history of skin cancer or other significant risk factors.

Who Should Consider Cancer Screening in Nigeria?

Cancer screening is not the same for everyone. Your doctor may recommend particular tests based on your personal circumstances.

You may benefit from discussing cancer screening if you:

• Are entering an age group for which screening is recommended.
• Have a close relative who has had cancer, especially at a young age.
• Have a known inherited genetic risk associated with certain cancers.
• Have chronic infections or medical conditions that increase cancer risk.
• Have a history of abnormal screening results or precancerous changes.
• Have lifestyle or occupational exposures that increase your risk of particular cancers.

People with symptoms should seek diagnostic evaluation rather than assuming that a routine screening test is sufficient.

How Often Should You Get Cancer Screening Tests?

There is no single screening schedule that applies to every cancer or every individual.

Screening intervals vary according to the type of test, previous results, age, personal risk factors and applicable clinical guidelines.

For example, cervical screening intervals differ according to whether HPV testing or cytology is used. Breast screening schedules also depend on individual risk and the recommendations adopted by the treating healthcare professional.

If you have previously received an abnormal result, your doctor may recommend a shorter follow-up interval or additional investigations.

The best approach is to establish a personalised screening plan with a qualified healthcare professional rather than relying on a universal screening package.

What Happens If a Cancer Screening Test Is Abnormal?

An abnormal screening result does not necessarily mean that you have cancer.

Some results indicate a possible abnormality that requires further investigation. Your doctor will explain the findings and recommend the appropriate next steps.

Depending on the test, these may include:

1. Repeat testing: Some abnormalities require confirmation with another test.
2. Diagnostic imaging: Ultrasound, mammography, CT or MRI may be recommended to investigate a suspicious finding.
3. Specialist consultation: A relevant specialist may assess the result and your medical history.
4. Biopsy or further procedures: A tissue sample may be needed to confirm whether cancer is present.
5. Follow-up or treatment: The next step depends on the confirmed diagnosis and clinical findings.

It is important to attend recommended follow-up appointments and obtain a clear explanation of your results.

How to Prepare for a Cancer Screening Appointment

Preparing for your appointment can help your healthcare professional make appropriate recommendations.

Before your visit:

• Write down your personal medical history and any previous screening results.
• Tell your doctor if close family members have had cancer.
• List any new symptoms or changes you have noticed.
• Bring information about your medications and relevant medical conditions.
• Ask whether you need to fast or follow any special preparation instructions.
• Find out when and how you will receive your results.

Not every screening test requires special preparation. Follow the instructions provided by your healthcare team for the particular test you will undergo.

Frequently Asked Questions About Cancer Screening in Nigeria

1. What is the best cancer screening test?

There is no single test that screens for every type of cancer. The most appropriate test depends on the cancer being considered, your age, medical history and individual risk factors.

2. Can cancer screening detect cancer before symptoms appear?

Yes. The purpose of screening is to detect certain cancers or precancerous changes before symptoms develop. However, no screening test detects every cancer, and some cancers do not have established routine screening methods.

3. Can a normal screening result guarantee that I do not have cancer?

No. Screening tests can produce false-negative results, meaning that an abnormality may be present even when the result appears normal. New or persistent symptoms should be evaluated even after a recent normal screening result.

4. Do I need cancer screening if I feel healthy?

You may still benefit from appropriate screening even if you feel healthy. Some cancers develop without noticeable early symptoms. A healthcare professional can help you determine which tests are appropriate for your age and risk profile.

5. Does an abnormal screening result mean I have cancer?

No. An abnormal result means that further evaluation may be necessary. Additional testing is often required to determine whether cancer is present.

6. How can I find cancer screening services in Nigeria?

You can start by contacting a reputable hospital or healthcare provider to discuss your risk factors and the screening services available. Ask about the recommended tests, preparation, costs, interpretation of results and follow-up care.

7. When should I see a doctor instead of waiting for screening?

Seek medical assessment if you notice a new lump, unexplained bleeding, persistent changes in bowel habits, a sore that does not heal, unexplained weight loss or another unusual symptom. These symptoms do not automatically mean cancer, but they should not be ignored.

Take the Next Step Towards Better Health

Understanding cancer screening in Nigeria is an important step towards taking charge of your health. From breast and cervical cancer screening to prostate and colorectal cancer assessment, the right approach depends on your age, medical history and individual risk factors.

Early detection can make a meaningful difference for certain cancers, while appropriate follow-up ensures that abnormal results are investigated promptly.

At Isalu Specialist Hospital, your health deserves informed attention and professional care. Speak with a qualified healthcare professional to understand which cancer screening tests may be appropriate for you and how to plan your next steps.

Do not wait for symptoms before asking questions about preventive healthcare.

Book a consultation with Isalu Specialist Hospital to discuss your health concerns and explore appropriate screening options.

Disclaimer: This article is intended for general educational purposes and does not replace professional medical advice, diagnosis or treatment. Screening recommendations can change and may differ according to individual risk and local guidelines. Always consult a qualified healthcare professional before deciding which screening tests you need.

Leave a reply