Breast cancer is the most common type of cancer among women and millions around the world are affected each year. Although these statistics can seem overwhelming, early detection is a powerful weapon to fight this cancer. When it is detected early, there is a very high survival rate, so it is crucial that you understand breast cancer and know how to prevent and detect it early.
A Breast Cancer Overview
While breast cancer is thought to be a cancer only affecting women, men can also develop the disease. It starts when cells begin to grow out of control. Each breast has different parts, including glands, fatty tissue and ducts. Depending on where the cancer originates, there are different types of breast cancer.
- Lobular cancer starts in the lobules, which are the glands that produce breast milk.
- Ductal cancer is the most common form of breast cancer and it starts in the ducts. These are small canals that come from the lobules to carry milk to the nipple.
- Phyllodes tumors are a less common form of breast cancer, starting in the stroma or fat and connective tissue that surrounds the lobules and ducts.
- Paget Disease is another less common type of breast cancer, which starts in the nipple.
- Angiosarcoma starts in the lining of the lymph and blood vessels that run through each breast.
There are also a small number of cancers that can start in other breast tissues. These cancers including lymphomas and sarcomas are not technically classified as breast cancer.
It is also important to note that not all breast lumps are cancer and there are some benign tumors that are abnormal growths. While these can cause pain and discomfort, benign tumors are not cancerous and do not spread outside the breast. Any change or lump in the breast should be checked by your healthcare professional to verify if it is benign or malignant.
Unfortunately, often early stage breast cancer has no noticeable symptoms, but early detection provides a wider variety of treatment options. Early detection increases the likelihood of successful treatment and a better long term outcome, even with less invasive treatment. Early stage cancers also typically require less aggressive treatment, which can not only lead to lower healthcare costs, but can improve the quality of life throughout the treatment.
How Breast Cancer Can Spread
One of the reasons why breast cancer is particularly daunting is that there is great potential for it to spread. The cancer cells can get into the lymphatic system, which would allow them to be carried to other areas of the body.
The lymphatic or lymph system is a network of nodes or glands, ducts and vessels. These work together to transport lymph fluid through the tissues to the blood. This lymph fluid contains immune system cells, waste materials and tissue by-products.
The lymph vessels move lymph fluid away from the breasts. Most of the breast lymph vessels drain into the lymph nodes under the arms, inside the chest near the breastbone, and around the collarbone. If cancer cells enter the lymph vessels, they can start to grow in the lymph nodes and there is a higher chance the cells may have traveled through the lymphatic system to other parts of the body.
However, not all cases where cancer cells are in the lymph nodes develop secondary cancer, while some patients with no cancer cells in the lymph nodes have their cancer metastasize into another area of the body.
Breast Cancer Early Detection Techniques
There are a number of early detection techniques that can provide an opportunity to address any issues quickly and increase the chances of a successful outcome.
Self Examination
Breast self examination is important, so you can be familiar with the normal feel and look of your breasts. This makes it easier to detect any lumps or changes. There are certain signs you should look out for.
- A lump or thickened area of the skin that feels different compared to the surrounding tissue.
- A flattened or inward turning nipple.
- A change in the shape, size or appearance.
- Dimpling or other changes to the skin over the breast.
- A change in the color of the skin. In people with white skin, the skin may appear red or pink, while those with black or brown skin may notice darker skin or it looks purple or red.
Health professionals recommend self examination monthly, ideally in the week following the end of your period.
Clinical Breast Examinations
During this breast exam, a healthcare professional visually inspects and manually examines the breasts for any lumps or abnormalities. Clinical breast exams are commended every three years for women under 50 and every year for women aged over 50.
Mammograms
This is a common breast cancer screening tool. It uses low dose x-rays to create an image of the breast tissues to detect any abnormalities such as masses or lumps before they can even be felt. Frequency screening varies according to risk factors, age and individual health history.
Ultrasound
This technology uses soundwaves to create an image of the tissues. It is commonly used during pregnancy to check on the development of the fetus, but it can also differentiate between fluid filled cysts and solid lumps within the breast tissue.
MRI
MRI or magnetic resonance imaging uses radio waves and strong magnets to create a detailed image. Typically, it is used for those with a high breast cancer risk.
The optimal early detection tool depends on a number of factors.
- Age: Screening recommendations do vary according to age, as the breast tissue can be subject to hormone changes. Women in their 20s and 30s tend to benefit from breast exams, both self and clinical, while mammograms tend to be routine for women in their 50s.
- Risk Factors: If you have a family history of breast cancer, a medical history of certain benign conditions or genetic mutations, you may require more specialized or frequent screening.
- Overall Health: Your general overall health, including if you’ve had previous breast tumor issues can influence the screening techniques.
Empowering Yourself for Proactive Health
Early detection is crucial in the fight against cancer and by familiarizing yourself with breast cancer early detection techniques, and understanding your specific risk factors, you can empower yourself to be proactive about your health.
It is important to schedule regular checkups rather than waiting for any symptoms to appear. Be sure to schedule regular checkups with your healthcare professionals including clinical breast exams. You can also ask questions about your personal risk factors or discuss any concerns to help you to become better equipped to be more informed about your healthcare decisions.
You should also self examine regularly and learn more about your family history. Discuss the medical history of your close relatives, particularly any who may have had breast cancer, which can help your doctor assess your risk.
If you have any concerns, it is important that you advocate for yourself, and remember that you can insist on further testing or seek a second opinion if you are not comfortable.
FAQs About Breast Cancer Early Detection
How Long Can You Have Breast Cancer Before A Diagnosis?
It is possible to have breast cancer for years before you notice a lump or other sign of an issue. So, it is important to be aware of any subtle changes in your breasts. If you have a mass or unusual bump that doesn’t go away after several days or a week, it is worth checking with your healthcare provider.
How Fast Can Breast Cancer Spread?
This depends on a number of factors including the type of cancer, your family history and the tumor stage and grade. The cancer staging system is designed to help plan treatments and it is determined by the tumor size, location and whether it has spread.
| Stage | Tumor Size | Lymph Node Involvement | Metastasis | Common Treatment Options |
|---|---|---|---|---|
| Stage 0 (Carcinoma in Situ) | No tumor or very small | No lymph node involvement | No spread beyond ducts/lobules | Surgery (lumpectomy or mastectomy), radiation, hormone therapy (if applicable) |
| Stage I | ≤2 cm | No or minimal lymph node involvement | No distant spread | Surgery, radiation, hormone therapy, chemotherapy (in some cases), targeted therapy |
| Stage II | 2–5 cm | May involve nearby lymph nodes | No distant spread | Surgery, chemotherapy, radiation, hormone therapy, targeted therapy |
| Stage III (Locally Advanced) | >5 cm or growing into chest wall/skin | Significant lymph node involvement | No distant spread | Surgery, chemotherapy, radiation, hormone therapy, targeted therapy |
| Stage IV (Metastatic) | Any size | May or may not involve lymph nodes | Cancer has spread to distant organs (lungs, bones, liver, brain) | Systemic treatments like chemotherapy, hormone therapy, targeted therapy, immunotherapy, palliative care |
Can Men Get Breast Cancer?
Men can get breast cancer, but it is not as common. Men make up less than 1% of all breast cancer cases in the U.S, but they should still watch out for lumps and other changes in the area.
Are Mammograms Painful?
Mammograms can cause some discomfort as there is some pressure on the breast during the test. However, most women can tolerate the scan well and if you have concerns, the technologist may be able to adjust your positioning to minimize discomfort while still providing optimal results.
Remember that the techniques are continually evolving, so even if you’ve previously had a mammogram and found it uncomfortable, you may find comfort has improved on your next appointment.
Are Mammograms Harmful?
Mammograms do involve radiation exposure, but the dosage is very low. The benefits offered by early detection easily outweigh the minimal risk that is associated with x-rays.
What if I Find Something During a Breast Exam?
While it can be scary to discover a lump or abnormality, it is important to have it checked. Many abnormal findings during screening are benign, which means that they are not cancerous. Early detection provides an opportunity to investigate further and if necessary there is potential for early intervention. So, it is always better to seek medical help.
Tips for Breast Cancer Early Detection and Prevention
The prospect of breast cancer can be incredibly intimidating, but there are some tips for early detection and prevention.
Do Not Ignore Breast Changes
From the age of 18, you should develop the habit of checking your breasts once a month, in the week after your period ends or at any time of the month once you are postmenopausal. If there are any changes in the shape, size or symmetry of your breasts, nipple inversion, discharge, dimpling or lumps in your breast or armpit, consult your healthcare professional.
Pay attention to any changes, even if they are painless. Malignant lumps are often painless, so a dangerous lump may not actually cause any discomfort. It is far better to err on the side of caution and get it checked.
Do Get Mammograms Regularly
If you’re over the age of 40, you should start the habit of getting regular mammograms. Typically, under 40s should get a mammogram every two years, but if you’re over 50, it should be part of your annual health check.
Explore Your Family History
If you have more than two family members who have been affected by cancer, particularly breast cancer and especially at a younger age, you need to discuss the risk with your healthcare professional.
There are certain genetic mutations that increase your inherited risk of developing cancer. In this scenario, you may benefit from consulting a genetics expert who may detect these genetic mutations.
Have Breast Lumps Properly Evaluated
Many people rush to have a breast lump removed, but it is important that it is worked up correctly. Having a breast lump removed before a proper evaluation, could result in unnecessary surgery, loss of opportunity to save the breast, a need for repeated surgeries or even missing the correct treatment sequence.
So, if you do find a lump, you need to go through a clinical check up, proper imaging and possibly a biopsy before it is removed. This will provide the best chance of a successful outcome.
Consider Genetic Counseling
If you have a strong family history, you may want to consider genetic counselling to see if you have a known inherited gene mutation, such as the BRCA1 or BRCA2 gene. Genetic counseling and testing can help you to stay informed about your risk and you can discuss further options to lower your risk.
Take Steps to Lower Your Risk
While there are no guarantees, you can lower your risk factors for developing breast cancer. Some steps that can lower your risk include:
Maintain a Healthy Weight
An increased body weight is linked to a higher risk of developing breast cancer. The American Cancer Society recommends maintaining a healthy weight throughout your life with balanced food intake and physical activity.
Take Regular Physical Activity
There have been numerous studies that regular moderate to vigorous physical activity has a link to lower breast cancer risk. It is recommended to get 150 to 300 minutes of moderate intensity or 75 to 150 minutes of vigorous intensity activity at least each week.
Moderate activity, such as brisk walking could leave you breathing harder, but still being able to talk. Vigorous activity has a faster breathing rate and higher intensity. So, you should be sweating and have a higher heart rate.
Try to spread your activity throughout the week, but you can combine moderate and vigorous activity.
Limit or Avoid Alcohol
Alcohol can increase the risk of developing cancer and even drinking small amounts has a link with increased risk. While no alcohol is ideal, women should consume no more than one alcoholic drink, which is the equivalent of 12 ounces of beer, 1.5 ounces of hard liquor or 5 ounces of wine, per day.
Assess Other Risk Factors
If you breastfeed for several months after having a baby, you can reduce your breast cancer risk, but there are hormone therapies at other times that can increase your risk. Menopause hormone therapy and hormone birth control can increase your risk, so you should discuss the benefits and potential risks with your healthcare professional before starting any treatment.
The Future of Early Detection
There have been a number of developments over the years to improve early detection and treatment. There are now medications that can lower breast cancer risk in some women who are at a higher risk of developing breast cancer. For those with a very high risk, there is preventative surgery, which can lower the risk. You can also be placed under close observation, which includes more frequent doctor visits for ongoing risk assessment, and early breast cancer screening to lower your risk.
Remember that the early detection field for breast cancer is constantly evolving. There are AI algorithms in development to more accurately analyze imaging data including mammograms, which could potentially lead to reduced false positives and improved detection rates.
There is also emerging liquid biopsy technology that allows for the analysis of cancer cells circulating within the bloodstream. This holds the promise of a non-invasive early detection technique for the future. We could also see 3D mammography, which would provide a far more detailed view of the breast tissue that could potentially improve cancer detection and reduce the need for further tests and biopsies.
Early detection is crucial for successful outcomes in breast cancer treatment, and while these future developments do hold great potential, it is important to focus on the current recommendations and ensure that you perform self examinations and have regular check ups to advocate for your own health.
