Prostate cancer is one of the important health conditions affecting men, particularly as age increases. One of the challenges is that early prostate cancer often does not cause noticeable symptoms. Urinary symptoms can also be caused by common non-cancerous conditions such as benign prostatic hyperplasia (BPH). This is why evaluation may involve risk assessment, PSA testing, examination, imaging and, when appropriate, prostate biopsy rather than relying on symptoms alone.
What Is Prostate Cancer?
Prostate cancer develops when abnormal cells in the prostate grow in an uncontrolled way. Some prostate cancers grow slowly, while others can be more aggressive and spread beyond the prostate. The appropriate approach depends on factors such as the cancer's grade, stage, PSA level, overall health and individual circumstances.
Prostate Cancer Risk Factors
- Increasing age
- A first-degree family history of prostate cancer
- Certain inherited genetic changes, including some BRCA-related mutations
- Certain genetic or hereditary cancer syndromes
- Some population and ancestry-related differences in risk
- A previous personal or family history that may warrant individualised risk assessment
What Are the Early Symptoms of Prostate Cancer?
Early-stage prostate cancer often does not cause symptoms. When symptoms do occur, they can include difficulty starting urination, a weak or interrupted urine stream, frequent urination, blood in the urine or semen, or discomfort in the pelvic area. These symptoms are not specific to cancer and can also occur with BPH, prostatitis or other urinary conditions.
Is Frequent Urination a Sign of Prostate Cancer?
Frequent urination by itself does not mean that a man has prostate cancer. BPH, urinary infection, overactive bladder, diabetes and other conditions can cause similar urinary symptoms. In fact, early prostate cancer commonly causes no symptoms. Persistent or new urinary symptoms should still be evaluated rather than assumed to be caused by prostate enlargement or cancer.
Prostate Cancer vs Enlarged Prostate: What Is the Difference?
Benign prostatic hyperplasia (BPH) is a non-cancerous enlargement of the prostate that becomes more common with age. BPH can cause urinary symptoms such as a weak stream, difficulty starting urination, urgency and frequent nighttime urination. Prostate cancer is a separate condition involving abnormal cancerous cells. Having BPH does not mean that a man has prostate cancer.
What Is a PSA Test?
PSA stands for prostate-specific antigen, a protein produced by prostate cells. A PSA blood test measures the amount of PSA in the blood. PSA can be elevated in prostate cancer, but also in non-cancerous conditions such as BPH and prostatitis. Therefore, a raised PSA does not by itself diagnose prostate cancer.
PSA testing should be interpreted in the context of age, symptoms, family history, previous PSA results and other risk factors. There is no single PSA value that can diagnose prostate cancer in every man.
How Is Prostate Cancer Diagnosed?
- Medical history and assessment of individual risk factors
- PSA blood test when appropriate
- Digital rectal examination (DRE) when clinically indicated
- Repeat or additional PSA evaluation when the result needs clarification
- Multiparametric MRI in selected men after clinical assessment
- Prostate biopsy when cancer needs to be confirmed
- Pathology assessment of biopsy tissue, including Grade Group or Gleason grading
- Additional imaging when staging or possible spread needs to be evaluated
Does a High PSA Mean Prostate Cancer?
No. PSA can rise because of prostate cancer, but it can also increase because of BPH, prostatitis and other prostate-related conditions. A single elevated PSA result should not automatically be interpreted as cancer. Depending on the situation, a urologist may recommend repeating the test, evaluating other clinical factors, using imaging or proceeding to biopsy.
What Is a Prostate Biopsy?
A prostate biopsy involves taking small tissue samples from the prostate so that a pathologist can examine them for cancer cells. A biopsy is used to confirm the diagnosis when clinical findings, PSA and imaging indicate that cancer may be present. The biopsy report also provides information about the grade of the cancer, which helps guide treatment decisions.
What Does the Gleason Score or Grade Group Mean?
The Gleason grading system describes how abnormal prostate cancer cells look under a microscope. Modern reports commonly also use Grade Groups to communicate the aggressiveness of the cancer. This information is combined with PSA, clinical findings and the extent of disease to help determine risk and treatment options.
What Are the Stages of Prostate Cancer?
- Stage I: Cancer is generally confined to the prostate and may be small or lower risk.
- Stage II: Cancer remains within the prostate but may have features indicating a higher risk or greater extent.
- Stage III: Cancer has extended outside the prostate or involves nearby structures, depending on the specific stage.
- Stage IV: Cancer has spread to nearby lymph nodes or distant parts of the body, depending on the stage classification.
How Is Prostate Cancer Treated?
Treatment depends on the stage, Grade Group, PSA level, risk category, overall health and personal circumstances. Options can include active surveillance for selected localised cancers, surgery, radiation therapy and hormone therapy. Advanced disease may require systemic treatments such as androgen-deprivation therapy, chemotherapy, targeted therapy or other treatments depending on the cancer's characteristics.
Common Prostate Cancer Treatment Options
- Active surveillance for selected lower-risk, localised cancers with regular monitoring
- Radical prostatectomy to remove the prostate in appropriate patients
- External-beam radiation therapy
- Brachytherapy or internal radiation in selected cases
- Hormone therapy or androgen-deprivation therapy
- Chemotherapy for selected advanced cancers
- Targeted or other systemic therapies for specific advanced or recurrent cancers
- Radiopharmaceutical or bone-directed treatments in selected metastatic disease
Can Prostate Cancer Be Cured?
Many prostate cancers that are detected while still localised can be treated with curative intent. The outlook depends heavily on the cancer's stage, grade, PSA level and other risk characteristics. Advanced or metastatic prostate cancer is managed differently, with treatment focused on controlling the disease, extending survival and maintaining quality of life.
Can Prostate Cancer Spread to the Bones?
Yes. Prostate cancer can spread beyond the prostate, including to bones and lymph nodes. When staging suggests that cancer may have spread, additional imaging may be recommended. Treatment for metastatic prostate cancer is different from treatment for cancer confined to the prostate and may involve hormone therapy combined with other systemic treatments.
Is Prostate Cancer the Same as Prostate Enlargement?
No. BPH is a benign enlargement of the prostate and is not cancer. Both conditions can occur in the same person and can produce overlapping urinary symptoms. This is why persistent urinary symptoms or an abnormal PSA should be properly evaluated rather than assumed to be caused by BPH alone.
When Should a Man See a Urologist?
A urology evaluation is appropriate when a man has persistent urinary symptoms, blood in the urine or semen, an abnormal or rising PSA, an abnormal prostate examination, a strong family history of prostate cancer, or concerns about prostate cancer risk. Early evaluation can help determine whether further testing is appropriate.
Concerned About Your Prostate Health?
If you have an abnormal PSA, urinary symptoms, a family history of prostate cancer or concerns about prostate cancer screening, a urologist can assess your individual risk and explain which tests are appropriate.
Resources
- NCI: Prostate Cancer ScreeningNational Cancer Institute
- NCI: Prostate-Specific Antigen (PSA) TestNational Cancer Institute
- NCI: Understanding Prostate ChangesNational Cancer Institute
- NCI: Prostate Cancer TreatmentNational Cancer Institute
- Dr Vikram Barua Kaushik: Enlarged Prostate (BPH)Dr Vikram Barua Kaushik
FAQs
Frequently asked questions
Early prostate cancer often causes no symptoms. When symptoms occur, they can include urinary difficulty, a weak urine stream, frequent urination, blood in the urine or semen, or pelvic discomfort. These symptoms can also occur with non-cancerous prostate conditions.
