Don't Fear Cancer: Early Detection and Screening Tests

Cancer occurs when cells in the body multiply uncontrollably. While the word itself can be daunting, the success rate of treatment is remarkably high when the disease is caught in its early stages. As frequently highlighted during April 1-7 Cancer Control Week, regular health check-ups and cancer screening tests make it possible to detect the disease before it causes a single symptom. Understanding how to protect yourself and taking steps toward early intervention are the fundamental keys to a long, healthy, and high-quality life.

• In Brief:
• Early detection increases the chances of successful treatment to over 90% for many types of cancer, such as breast, colon, and prostate.
• Unexplained sudden weight loss, a persistent cough, and changes in skin moles should always be taken seriously.
• It is generally recommended that women have annual mammograms after age 40, and everyone should schedule a colonoscopy after age 45-50.
• Staying away from tobacco products, eating a balanced diet, and exercising regularly significantly lower your cancer risk.
• With BHT CLINIC's comprehensive check-up programs, you can create a personalised screening plan tailored to your age and genetic risk.

Why is Early Detection So Important?

When cancer cells first begin to form, they rarely cause pain, discomfort, or any noticeable complaints. The disease can progress silently, and by the time symptoms finally appear, the cancer cells may have already spread to surrounding tissues or distant organs. However, when cancer is detected early, the cells are usually still localized. At this stage, surgical interventions or medical treatments are far more effective.

For cases identified in the early stages, highly successful results can be achieved using milder treatment methods that do not exhaust the patient's body. Organ loss is prevented, and the person's quality of life is preserved. For instance, the five-year survival rate for patients with early-stage breast or prostate cancer reaches up to 99%. Annual campaigns like April 1-7 Cancer Control Week aim to build this vital awareness in society. Rather than fearing the disease, the best approach is to know your body and take control of your health through regular screenings.

Cancer Risk Factors and Causes

While the exact cause of cancer is not always fully understood, it is well-established that damage to the DNA structure of cells triggers the process. Some of these genetic mutations are inherited from family members, but a large majority develop over time due to environmental factors and lifestyle choices. Because the body's cellular repair mechanisms naturally weaken as we age, the incidence of cancer increases significantly in individuals aged 50 and older.

Tobacco use is one of the most well-known risk factors, responsible for approximately 80% of lung cancers. Excessive alcohol consumption, obesity, a sedentary lifestyle, and a diet heavy in processed foods also pose serious risks, particularly for digestive system cancers. Furthermore, prolonged, unprotected exposure to the sun's harmful UV rays can trigger skin cancer, while certain viral infections like HPV (Human Papillomavirus) or Hepatitis B can pave the way for cellular changes. Individuals with a history of cancer in first-degree relatives are considered to carry a genetic risk and should begin screening programs at an earlier age.

Common Symptoms of Cancer

Your body often sends small signals when something is not quite right. Being aware of these signs is the first step toward early detection. Although cancer symptoms vary depending on the type of disease and the affected organ, there are general warning signs everyone should know. For example, losing more than 10% of your body weight within six months without trying to diet is a significant systemic symptom.

Any palpable lumps or swelling in the breast tissue, neck, armpits, or groin must be evaluated by a physician. If existing moles on your skin become asymmetrical, change colour, grow, or bleed, it could be a warning sign of skin cancer. Sudden changes in bowel habits, prolonged diarrhoea or constipation, or blood in the stool point to digestive system issues. A persistent cough lasting more than three weeks, hoarseness, difficulty swallowing, or wounds that refuse to heal are other crucial symptoms that require attention. It is important to remember that these signs do not always mean cancer; infections or benign cysts can cause similar complaints. However, to clarify the underlying cause, you should consult a specialist without delay.

What Are the Most Common Cancer Screening Tests?

Fighting cancer begins when we are healthy, not just when we fall ill. Cancer screening tests performed while you feel completely fine, without waiting for symptoms, are genuinely lifesaving. Screening schedules are specially planned according to age, gender, and genetic risk factors.

Cancer Screenings for Women

To guard against breast cancer, the most common type in women, having a regular annual mammogram starting at age 40 is the gold standard. A mammogram can detect masses in the breast while they are still too small to be felt by hand. Another vital screening is for cervical cancer. It is recommended that women have regular Pap smear tests starting at age 21, with HPV DNA testing added after age 30. Through these screenings, cellular abnormalities are caught before they turn into cancer. For more information, you can read our article on cervical cancer.

Cancer Screenings for Men

The risk of prostate cancer in men increases significantly with age. Starting at age 50, every man should have his blood PSA (Prostate-Specific Antigen) levels checked annually and undergo an examination by a urologist. Men with a family history of prostate cancer are advised to begin these screenings at age 45.

Shared Screenings for Both Genders

Colorectal cancer is common in both men and women and can be completely prevented with early detection. Everyone between the ages of 45 and 50 should have a colonoscopy every 10 years or provide a faecal occult blood test annually. Polyps detected during a colonoscopy can be removed immediately, stopping cancer development in its tracks. You can find detailed information in our colon cancer guide. Additionally, screening for lung cancer with low-dose computed tomography is highly important for individuals aged 50-80 who have been heavy smokers for many years.

Ways to Prevent Cancer

While we cannot change our genetics, making conscious lifestyle changes can cut our cancer risk in half. Among the ways to prevent cancer, completely removing tobacco and tobacco products from our lives takes the top spot. Avoiding secondhand smoke is just as valuable as quitting smoking yourself. Dietary habits also have a direct impact on cellular health. Adopting a Mediterranean-style diet—taking advantage of the fresh, seasonal vegetables, fruits, whole grains, and legumes abundant in Türkiye, while limiting processed meats and excessive sugar—greatly strengthens the immune system.

Physical activity lowers obesity-related cancer risks by keeping body weight under control. Aerobic exercises like brisk walking, swimming, or cycling for at least 150 minutes a week should be added to your routine. Protecting your skin health means avoiding direct sunlight during peak hours and using sunscreen with at least SPF 30. Furthermore, getting vaccinated against viruses like HPV and Hepatitis B creates a strong shield against the types of cancer these viruses can cause.

When to See a Doctor and Medical Emergencies

Observing changes in your body and seeking medical support without delay when you notice something unusual is vital. If you experience lumps anywhere on your body that have not shrunk for over two weeks, persistent hoarseness, difficulty swallowing, or blood in your urine or stool, you should definitely consult a specialist. Unexplained fevers, night sweats, and extreme fatigue are also complaints that require detailed investigation.

In some cases, immediate medical intervention is necessary. Sudden and severe shortness of breath, coughing up or passing large amounts of bright red blood, confusion, sudden paralysis or loss of sensation, and sudden, unbearable pain require emergency department evaluation. In such severe and rapidly developing situations, do not waste time; call the 112 Emergency Call Centre immediately or go to the nearest hospital's emergency department.

Cancer Screening and Check-up Process at BHT CLINIC

At BHT CLINIC İstanbul Tema Hastanesi, we manage cancer prevention and early detection through a multidisciplinary approach. At our Check-up Centre in Küçükçekmece, our specialist physicians design personalised screening programs tailored to your age, gender, profession, and family genetic risk factors. Thanks to our advanced imaging technologies (MRI, Computed Tomography, Digital Mammography) and modern laboratory infrastructure, all screening tests are performed with the highest precision.

If any suspicious findings are detected, your case is evaluated by medical councils including specialists from Medical Oncology, General Surgery, and other relevant departments. With our fully equipped 24/7 emergency department and infrastructure meeting international JCI quality standards, our hospital is by your side at every step. To stop postponing your health and create the most suitable screening plan for you, you can book an appointment or request 24/7 support from our call centre at 0850 811 34 00.

Frequently Asked Questions

What are the symptoms of cancer?

The most common symptoms include unexplained weight loss, persistent fatigue, palpable lumps on the body, a stubborn cough, changes in bowel or bladder habits, and changes in the colour or shape of skin moles. If these symptoms last longer than two weeks, you should definitely consult a physician.

What are the cancer screening tests?

The most common screening tests are mammograms and Pap smears for women; PSA blood tests and prostate exams for men; and colonoscopies and faecal occult blood tests for both genders. Low-dose computed tomography of the lungs is also used for individuals in high-risk groups.

Does early detection really save lives?

Yes. When cancer cells are detected before they spread to surrounding tissues or distant organs (metastasise), the success rate of surgical interventions and treatments rises above 90%. Early detection both extends life expectancy and preserves your quality of life.

What should I do if I have a family history of cancer?

If you have a history of cancer in first-degree relatives (mother, father, siblings), you may carry a genetic risk. In this case, rather than waiting for standard screening ages, you should begin personalised check-up programs at an earlier age determined by your physician.

How should I eat to prevent cancer?

You should avoid processed meats, excessive sugar, and heavily packaged foods. A Mediterranean-style diet focused on fresh vegetables and fruits, whole grains, legumes, and olive oil has a protective effect against cancer.

This article is for informational purposes only; please consult your physician for diagnosis and treatment.