Prostate Cancer

Medically reviewed by John Sammis, D.O. on April 3, 2024
14 min read

Prostate cancer is a common malignancy affecting the prostate gland in men, typically over the age of 50. It arises when cells in the prostate mutate and begin to multiply out of control. These cells may eventually form a tumor and can spread to other parts of the body. Early detection is crucial, as it often presents with no symptoms in initial stages. Regular screenings, such as PSA tests, are recommended for early diagnosis.

Prevalence of Prostate Cancer

Prostate cancer is one of the most frequently diagnosed cancers in men worldwide. Its prevalence is particularly high in developed countries, which may be attributed to better screening practices and a longer life expectancy. Lifestyle factors and genetics also play a role in an individual's risk. Understanding these statistics is important for awareness and emphasizes the need for research and effective treatment strategies.

Prostate Cancer Outlook and Survival Rates

The outlook for prostate cancer patients has improved significantly over the years, with many men living long after diagnosis, thanks to advances in treatment. The survival rate is particularly high when the cancer is detected early and is localized to the prostate. Factors that influence the prognosis include the stage of the cancer, the patient's age, and overall health. Treatment options such as surgery, radiation therapy, and hormone therapy contribute to the positive survival rates.

Causes and Risk Factors of Prostate Cancer

While the exact causes of prostate cancer are not fully understood, several risk factors have been identified. Age is the most significant factor, with the majority of cases occurring in men over 65. Family history of the disease, ethnicity, and lifestyle choices such as diet and physical activity can also influence one's risk. It's important for men to discuss these risks with their healthcare provider to determine an appropriate screening schedule.

Preventing Prostate Cancer

Prevention strategies for prostate cancer are not clear-cut, but maintaining a healthy lifestyle may reduce the risk. This includes a balanced diet rich in fruits and vegetables, regular exercise, and maintaining a healthy weight. Avoiding tobacco and moderating alcohol consumption are also advised. While these measures may not prevent prostate cancer entirely, they can contribute to overall health and potentially lower the risk of developing the disease.

Symptoms

Prostate cancer may not show symptoms in its early stages, but as it progresses, certain warning signs may become evident. It's crucial to pay attention to subtle changes in urinary or sexual function, which could indicate the need for a medical evaluation.

Urinary Symptoms

One of the most common areas affected by prostate cancer is the urinary system, due to the prostate's proximity to the bladder and urethra. The following symptoms may suggest the presence of prostate cancer:

  • A frequent need to urinate, especially at night
  • Difficulty starting or stopping urine flow
  • A weak or interrupted urine stream
  • Painful or burning urination
  • Presence of blood in urine or semen

Sexual Dysfunction

Prostate cancer can also interfere with sexual function, which may manifest as erectile dysfunction or painful ejaculation. These symptoms can be distressing and may significantly impact a person's quality of life.

Advanced Symptoms

As prostate cancer advances, it may spread beyond the prostate gland, leading to more severe symptoms. These can include pain or stiffness in the lower back, hips, or upper thighs. Unexplained weight loss and fatigue are also potential indicators of advanced prostate cancer.

Importance of Screening

While the presence of these symptoms does not necessarily mean you have prostate cancer, they should not be ignored. Regular screening and prompt attention to changes in your body can lead to early detection, which is key in managing the disease effectively.

Take the Prostate Cancer Assessment

Causes

One of the primary risk factors for developing prostate cancer is a family history of the disease. Men with a father or brother who have had prostate cancer are at a higher risk, suggesting a genetic component to its development. Inherited mutations of BRCA1 and BRCA2 genes, more commonly associated with breast and ovarian cancers, can also increase the risk of prostate cancer.

Age and Prostate Cancer Incidence

Age is a significant cause in the incidence of prostate cancer. The risk of developing this condition increases substantially after the age of 50, with the majority of cases diagnosed in men over 65. This suggests that the aging process may contribute to changes in prostate cells that lead to cancer.

Dietary Influences on Prostate Health

Diet has been studied as a potential cause for prostate cancer, with certain dietary patterns possibly increasing risk. High consumption of red meat, dairy products, and high-fat foods has been linked to a greater chance of developing prostate cancer. Conversely, diets rich in vegetables and fruits may have a protective effect.

Hormonal Changes and Prostate Cancer

The role of hormones, particularly testosterone, is a key area of research in understanding the causes of prostate cancer. Hormonal changes, especially those involving androgens, the male sex hormones, may stimulate the growth of cancerous cells in the prostate. Therapies that reduce androgen levels are often used in treating prostate cancer, which supports the hormone-cancer link.

Environmental and Lifestyle Factors

Environmental exposures, such as contact with certain chemicals or carcinogens, may increase the risk of prostate cancer. Lifestyle factors, including smoking and a lack of physical activity, have also been associated with a higher risk of developing the disease. Understanding these causes is crucial for prevention and early detection strategies.

Getting a Diagnosis

Early detection of prostate cancer often begins with screening tests, such as the Prostate-Specific Antigen (PSA) blood test and Digital Rectal Exam (DRE). Elevated PSA levels may suggest the presence of cancer, but further investigation is required to confirm the diagnosis as PSA can also be elevated due to other conditions.

Confirmatory Tests for Prostate Cancer

Following initial screening, confirmatory tests such as a prostate biopsy are typically recommended. During a biopsy, small samples of prostate tissue are collected and examined under a microscope to determine if cancer cells are present and to assess the aggressiveness of the cancer if detected.

Imaging Techniques in Prostate Cancer Diagnosis

Advanced imaging techniques such as Magnetic Resonance Imaging (MRI), Computed Tomography (CT) scans, and Positron Emission Tomography (PET) scans may be utilized to visualize the prostate and surrounding tissues. These images help in determining the extent of the cancer and whether it has spread beyond the prostate.

Genetic and Molecular Testing in Prostate Cancer

Emerging diagnostic tools involve genetic and molecular testing to identify specific genes, proteins, and other factors unique to the cancer. This information can help predict the behavior of the cancer and guide personalized treatment decisions.

Role of Prostate Health Index (PHI) and 4Kscore Tests

The Prostate Health Index (PHI) and 4Kscore tests are newer blood tests that provide more detailed information compared to PSA alone. These tests measure multiple markers and calculate a score that reflects the probability of finding aggressive prostate cancer upon biopsy, aiding in the decision-making process for further diagnostic procedures.

Questions for Your Doctor

When diagnosed with Prostate Cancer, it's crucial to grasp the specifics of your condition. Discuss the type, stage, and grade of the cancer, as these factors influence treatment options. Inquire about the Gleason score and what it means for your prognosis. Understanding the extent of the cancer is essential for making informed decisions about your health.

Evaluating Treatment Options

There are multiple treatment paths for Prostate Cancer, each with its benefits and risks. Ask your doctor to outline all available treatments, such as surgery, radiation therapy, hormone therapy, or chemotherapy. Discuss the potential side effects and how they might impact your quality of life. It's also important to consider the likelihood of each treatment's success in managing your specific case.

Monitoring and Managing Side Effects

Managing the side effects of Prostate Cancer treatments is a key part of your care plan. Discuss with your doctor what side effects to expect and how to best manage them. This may include urinary incontinence, erectile dysfunction, or bowel issues. Knowing how to handle these effects can help maintain your quality of life during and after treatment.

Understanding Prognosis and Recurrence Risks

It's natural to be concerned about your long-term outlook and the risk of Prostate Cancer recurrence. Ask your doctor about your prognosis and the factors that may affect it. Discuss follow-up care and what signs to watch for that might indicate a recurrence. Understanding these risks can help you stay vigilant and proactive in your health management.

Lifestyle Changes and Support Resources

Living with Prostate Cancer often requires lifestyle adjustments. Discuss dietary changes, exercise, and other lifestyle modifications that can support your treatment and overall health. Additionally, ask about support groups, counseling services, or other resources that can provide emotional and practical support during this challenging time.

Treatment

For men diagnosed with low-risk prostate cancer, active surveillance and watchful waiting are two approaches that involve careful monitoring of the condition without immediate treatment. Active surveillance includes regular testing and potential biopsies to track the progression of cancer, while watchful waiting is less intensive, focusing on managing symptoms as they arise. These strategies aim to avoid or delay the side effects associated with more aggressive treatments.

Surgery: Radical Prostatectomy

Radical prostatectomy is a surgical procedure to remove the entire prostate gland and surrounding tissue. This treatment is often recommended for men with localized prostate cancer and involves either traditional open surgery or minimally invasive techniques, such as laparoscopic or robotic-assisted surgery. While effective in removing cancer, patients should be informed about potential risks, including urinary incontinence and erectile dysfunction.

Radiation Therapy

Radiation therapy is a common treatment for prostate cancer, utilizing high-energy rays or particles to destroy cancer cells. There are two main types: external beam radiation therapy (EBRT) and brachytherapy. EBRT directs radiation from outside the body, while brachytherapy involves placing radioactive seeds directly into the prostate. Both methods aim to target cancer cells while minimizing damage to surrounding healthy tissue.

Hormone Therapy

Hormone therapy, also known as androgen deprivation therapy (ADT), reduces the levels of male hormones, or androgens, which can stimulate the growth of prostate cancer cells. This treatment can be administered through medications or surgery to remove the testicles, known as orchiectomy. Hormone therapy is often used in conjunction with other treatments, such as radiation therapy, to improve outcomes.

Chemotherapy and Immunotherapy

For advanced or high-risk prostate cancer, chemotherapy may be utilized to kill rapidly dividing cells and manage symptoms. It can be delivered systemically and is particularly useful when cancer has spread beyond the prostate. Immunotherapy is a newer form of treatment that helps the immune system recognize and fight cancer cells. One such immunotherapy drug, sipuleucel-T, is tailored to each patient's immune system and has shown promise in treating advanced prostate cancer.

Drugs & Medications

Androgen Deprivation Therapy, or ADT, is a cornerstone in the treatment of advanced prostate cancer. Drugs such as leuprolide (Lupron, Eligard), goserelin (Zoladex), and triptorelin (Trelstar) are used to lower testosterone levels, which prostate cancer cells rely on to grow. These medications are typically administered through injections or implants.

Anti-Androgens and Novel Hormonal Agents

Anti-androgens like bicalutamide (Casodex), flutamide, and nilutamide (Nilandron) block the action of testosterone on prostate cancer cells. Newer agents such as enzalutamide (Xtandi) and apalutamide (Erleada) have been developed to more effectively target androgen receptors, offering additional options for patients with castration-resistant prostate cancer.

Chemotherapy Drugs

Chemotherapy is often used when prostate cancer has spread and is resistant to hormonal therapy. Docetaxel (Taxotere) and cabazitaxel (Jevtana) are FDA-approved chemotherapy drugs that can extend survival and alleviate symptoms in advanced prostate cancer cases. These drugs are administered intravenously and work by disrupting the growth of cancer cells.

Immunotherapy and Targeted Therapies

Immunotherapy such as sipuleucel-T (Provenge) is designed to stimulate the body's immune system to attack prostate cancer cells. Additionally, targeted therapies like olaparib (Lynparza) and rucaparib (Rubraca) are used in patients with specific genetic mutations. These drugs are part of a class known as PARP inhibitors, which help to prevent cancer cells from repairing their damaged DNA.

Radiopharmaceuticals

Radiopharmaceuticals represent a unique treatment modality for prostate cancer that has spread to the bones. Radium-223 dichloride (Xofigo) is one such drug that delivers radiation directly to bone metastases, thereby limiting damage to surrounding healthy tissue. This treatment is typically reserved for symptomatic bone metastases in castration-resistant prostate cancer.

Diet

Incorporating a variety of fruits and vegetables into your diet can provide essential nutrients and antioxidants. Aim for a rainbow of colors to ensure a broad spectrum of vitamins and phytochemicals. Cruciferous vegetables like broccoli and cauliflower are particularly beneficial for their potential to inhibit cancer cell growth.

Choosing the Right Fats

Fats are a crucial part of your diet, but selecting the right types can make a difference. Focus on consuming healthy fats found in fish, nuts, and seeds, which contain omega-3 fatty acids. These fats can help reduce inflammation, a key factor in cancer progression. Limit intake of saturated and trans fats commonly found in processed foods.

Importance of Plant-Based Proteins

While protein is essential for health, plant-based sources can offer additional benefits. Legumes, nuts, and seeds are excellent choices that provide not only protein but also fiber and other nutrients. These can support overall health and may help in managing Prostate Cancer. Consider reducing red meat consumption, as some studies suggest a correlation with increased cancer risk.

Whole Grains for Fiber

Whole grains are an important part of a cancer-conscious diet. They provide a good source of fiber, which helps in maintaining a healthy digestive system. Choose whole-grain bread, pasta, and cereals over refined products to maximize the nutritional value and support your body's natural defenses.

Staying Hydrated

Proper hydration is essential for all bodily functions, including the immune system's ability to fight cancer. Drinking plenty of water throughout the day helps in flushing out toxins and can aid in managing treatment side effects. Avoid sugary drinks and excessive alcohol, as they can contribute to dehydration and offer no nutritional benefits.

Lifestyle

Maintaining a balanced diet rich in fruits, vegetables, and whole grains can be beneficial for individuals managing prostate cancer. Focus on incorporating foods high in antioxidants and omega-3 fatty acids, such as tomatoes, berries, and fatty fish, which may help support overall health. Limiting red meat, processed foods, and sugars is also advisable to maintain a healthy weight and reduce inflammation.

Stay Physically Active

Regular exercise is crucial for those with prostate cancer, as it can help manage side effects, improve mood, and boost energy levels. Aim for at least 150 minutes of moderate aerobic activity per week, complemented by strength training exercises. Always consult with your healthcare provider before starting any new exercise regimen to ensure it's safe and appropriate for your condition.

Manage Stress Effectively

Stress management is an important aspect of living with prostate cancer. Techniques such as mindfulness, meditation, and yoga can help reduce stress and improve your quality of life. Joining a support group or seeking counseling can also provide emotional support and help you navigate the challenges associated with your condition.

Consider Complementary Therapies

Complementary therapies, such as acupuncture, massage, or herbal supplements, may provide additional relief from symptoms and improve well-being. However, it's essential to discuss any complementary treatments with your healthcare provider to ensure they are safe and won't interfere with your conventional cancer treatments.

Maintain Regular Medical Checkups

Staying on top of your medical appointments is vital for monitoring the progression of prostate cancer and adjusting treatments as necessary. Keep an open line of communication with your healthcare team, and don't hesitate to ask questions or express concerns about your treatment plan or lifestyle changes you're considering.