Cancer Prevention and Screening: A Guide to Reducing Risk and Detecting Cancer Early

Cancer prevention and screening are common practices in prevention. Not all of the cancers can be prevented, but a number of cancer types can be affected by healthy being habits, recommended vaccinations, risk reduction, and screening.

Cancer screening is not the same as diagnosing cancer. Screening examines are performed typically in asymptomatic individuals to look for evidence of certain types of cancers. The goal is to detect possible abnormalities early where intervention and treatment can be more successful.

The following screening plan should be based upon age, sex, family history, personal medical history, lifestyle and risk factors:

A brief overview of cancer prevention, typical cancer screening procedures, risk factors, healthy habits, and when to bring up cancer screening with your doctor is outlined in this brochure.

Note: Cancer screening guidelines differ depending on the country and the specific person‘s risk factors. This academic article is intended only for general educational use and should not replace individual medical advice. Please discuss with a qualified healthcare professional which screening tests are right for you.

What Is Cancer Prevention?

Prevention is defined as intervention which may help to prevent some forms of cancer.

Prevention strategies can include:

• Avoiding tobacco products
• Maintaining a healthy lifestyle
• Staying physically active
• Eating a balanced diet
• Limiting exposure to certain harmful substances
• Protecting the skin from excessive ultraviolet radiation
• Receiving recommended vaccines
• Participating in appropriate cancer screening

Not all cancers can be prevented.

Some risk factors cannot be changed, including:

• Age
• Genetics
• Family history
• Certain inherited conditions

But there are situations when lifestyle and environmental factors can be changed.

Cancer prevention aims to minimize any preventable risk factors and promote good health.

How Preventive Care Helps Detect Cancer Early

The concept of preventive health care’ encompasses regular health examinations, long-term consideration of personal and family health history, and screening.

Regular healthcare visits provide an opportunity to discuss:

• Cancer risk factors
• Family history
• Lifestyle habits
• Changes in health
• Recommended screening tests

Why Early Detection Matters

Nothing can be said about the symptoms in some cancers in the early stages.

Screening may detect some abnormalities early in their course.

Early detection can offer greater treatment options, dependent on the type of cancer.

However, there are some cancers for which no screening has been recommended.

Limitations of screening may also include false-positive and false-negative results, and in some cases, screening tests may result in further testing.

For this reason, screening decisions must be made according to the current medical guidelines and individual risk.

Breast Cancer Screening

Screening varies based on the combination of age and risk.

A healthcare professional may consider:

• Age
• Family history
• Genetic risk
• Personal medical history

Mammography

Mammography is the most common imaging test used for screening of breast cancer.

Guidelines on when to start screening and at which intervals can differ between organizations and locations.

Individuals at elevated risk may require screening regimens tailored to their specific needs.

When to Discuss Breast Cancer Risk

Talk to a healthcare professional if you have:

• A strong family history of breast cancer
• Known inherited genetic risk factors
• Previous breast abnormalities
• Other concerns about personal risk

Cervical Cancer Screening

Cervical screening aims to detect cervical cell changes.

Screening methods may include:

• HPV testing
• Cervical cytology, sometimes called a Pap test
• A combination of recommended tests

The test and screening interval suggested can be adjusted depending on the patient‘s age, prior results and their needs according to the guidelines locally.

HPV and Cancer Prevention

A number of types of human papillomavirus (HPV) are linked with: cervical cancer and some other cancers.

Use of indicated HPV vaccination can reduce the risk of a selection of HPV infection.

Consult your physician regarding vaccines and screening guidelines.

Colorectal Cancer Screening

Screening of colorectal cancer can be used to detect; (i) colorectal cancer itself or (ii) certain precancerous changes.

Different screening options might be proposed.

These can include:

• Stool-based tests
• Colonoscopy
• Other recommended procedures

The most suitable screening method will depend on the person as well as local medical practice.

Family History and Colorectal Cancer

The following groups of people may need more frequent or earlier screening:

Share your family background with your doctor.

You should not delay seeking medical advice if you have symptoms that are worrying. Symptoms are not same as screening and need medical assessment.

Lung Cancer Screening

Lung cancer screening remains controversial. Current guidelines are to limit screening to certain at-risk individuals.

The advice is screening for selected adults with a history of cigarette smoking of at least, and not more than 30 pack-years.

Low-dose computed tomography (LDCT) can be utilized for qualifying persons.

Tobacco and Lung Cancer Risk

Smoking should be considered as an important risk factor.

Avoid tobacco or stop smoking to bring health benefits.

If you are a smoker, discuss with a GP some established methods that have been proven to help you to quit.

Lung cancer screening criteria should be explained to a healthcare professional.

Prostate Cancer Screening

Prior to screening, a patient may have a discussion with his health care professional about the advantages and limitations of a specific screening test.

Another possibility which may be considered is the blood test for the prostate-specific antigen (PSA).

Screening decisions may depend on:

• Age
• Family history
• Personal health
• Individual risk factors

For prostate cancer screening, which can have downsides as well as benefits, it is likely to be wise to discuss one‘s personal situation with a doctor.

The healthcare worker can assist in identifying if screening should be performed.

Common Cancer Screening Methods

Cancer Risk Factors

A risk factor is associated with a specific disease, and is a characteristic or exposure that increases the likelihood of developing that disease. Cancer risk factors are:

A risk factor is not a guarantee of cancer.

Also, even those without any known risk factors may develop cancer.

Non-Modifiable Risk Factors

There are certain risk factors that cannot be modified.

These include:

• Age
• Family history
• Genetics
• Certain inherited conditions

Modifiable Risk Factors

Certain risk factors can be altered by changing one‘s lifestyle.

Examples include:

• Tobacco use
• Excessive alcohol consumption
• Physical inactivity
• Certain dietary patterns
• Excessive sun exposure

Minimizing risk factors that can be changed may contribute to overall health.

Cancer Risk Factors at a Glance

Lifestyle Habits for Cancer Prevention

Healthy lifestyle habits may not prevent the development of cancer but they can help eliminate some of the risk factors.

Avoid Tobacco

The following is a list of the twenty-five priorities for the reduction of the most serious human cancers.

This includes avoiding:

• Cigarettes
• Smokeless tobacco
• Exposure to secondhand smoke when possible

Current tobacco users can visit their health care provider about cessation assistance.

Stay Physically Active

Getting regular physical activity.

Select activities that suit your age and health.

Examples include:

• Walking
• Cycling
• Swimming
• Sports
• Strength exercises

Eat a Balanced Diet

A healthy dietary pattern can be beneficial to overall health.

Consider including a variety of:

• Fruits
• Vegetables
• Whole grains
• Protein-rich foods

The nutritional needs of the individual differ.

Maintain a Healthy Body Weight

Your maintaining a body weight that suits your health conditions.

Able to consult a trained healthcare professional.

Protect Your Skin

Being too exposed to UV irradiation can cause damage of the skin and skin cancer.

Protective habits may include:

• Seeking shade when appropriate
• Wearing protective clothing
• Using sunscreen appropriately
• Avoiding intentional tanning

Follow Recommended Vaccination Guidance

Some infections are linked to a greater risk of certain types of cancers.

Vaccines such as the recommended hepatitis B vaccination and HPV vaccination may be useful in preventing some types of cancer.

Consult a healthcare professional regarding appropriate vaccination.

When Should You Talk to a Doctor About Cancer Screening?

Bringing up cancer prevention and screening as part of regular healthcare visits would be effective.

You should also speak with a doctor if you:

• Have a strong family history of cancer.
• Know of an inherited cancer-related condition in your family.
• Have previously had abnormal screening results.
• Have a history of cancer.
• Have questions about when screening should begin.
• Are unsure which screening tests are appropriate for you.
• Have a significant history of tobacco use.

Screening vs. Symptoms

Cancer screening is usually aimed at asymptomatic individuals.

If you experience new or ongoing symptoms, don‘t depend on a screening test at a later date.

Consult a healthcare professional for appropriate assessment.

Relevant examples of symptoms for which diagnosis by a doctor should be sought are any unexplained alteration to the body, bleeding or persistent pain.

Final Thoughts

Prevention and screening of cancer form an integral part of primary and secondary prevention.  Not all cancers are preventable but while eliminating all risk factors that can be changed, and adhering to screening protocols, may reduce the risk of some cancers and aid in early detection.

Maintaining healthy lifestyle habits Avoiding tobacco Staying physically active Eating a healthy diet Practicing sun protection Getting recommended vaccinations Going to regular doctor visits can all help.

Screening guidelines for cancer, like other health screenings, should not be a one size fits all solution. Age, family history, genetic and personal medical history, and other risk factors should all be considered when determining which screening tests are necessary.

The most efficient way of approaching cancer prevention and screening is to have that conversation with a trained healthcare provider. They can tailor a screening plan to you based on your risk factors and current medical guidelines.