What Are Some Early Warning Signs of Prostate Cancer?

Prostate cancer often causes no symptoms in its early stages. When symptoms do develop, they most commonly involve changes in urination. Less commonly, some men may notice blood in the urine or semen, or persistent pain if the disease is more advanced. Possible symptoms associated with prostate cancer include:

• Difficulty starting urination
• A weak or interrupted urine stream
• Frequent urination, especially at night
• Blood in the urine or semen
• Painful urination or ejaculation
• Persistent pain in the lower back, hips or pelvis

However, many of these symptoms can also occur with other benign prostate or urinary conditions. While experiencing one or more of these symptoms does not necessarily mean you have prostate cancer, they should be assessed by a doctor to determine the underlying cause, as early detection can often improve treatment outcomes.

Key Takeaways

• Early prostate cancer typically causes no symptoms.
• Possible early signs include changes in urination, blood in the urine or semen, and persistent pelvic or lower back pain.
• These symptoms are more commonly caused by non-cancerous prostate or urinary conditions than by prostate cancer.
• Persistent or unexplained symptoms should still be assessed by a doctor to determine the underlying cause.

Does Overly Frequent Urination Always Mean Prostate Cancer?

The sudden onset of frequent urination does not immediately mean prostate cancer. It is more commonly caused by non-cancerous prostate conditions such as benign prostatic hyperplasia (BPH), prostatitis (prostate infection), or urinary tract infections. However, it is still a possible early sign.

Benign prostatic hyperplasia (BPH), which is an enlargement of the prostate, is one of the most common causes of frequent urination in older men. Prostatitis, urinary tract infections and overactive bladder may also lead to similar symptoms. These conditions can cause men to urinate more often during the day, wake up multiple times at night to urinate or experience a sudden urge to pass urine.

Though less common, prostate cancer may also cause this symptom when a tumour grows large enough to press against or partially block the urethra, affecting the normal flow of urine. As urinary symptoms alone cannot distinguish between prostate cancer and other conditions, persistent or worsening changes to your urination habits should be assessed by a doctor.

Does Blood in the Urine or Semen Mean I Have Prostate Cancer?

While noticing blood in the urine or semen can be alarming, it is uncommon for it to be the first symptom of prostate cancer. If you do not have accompanying symptoms, there is a greater likelihood that the bleeding is related to another prostate or urinary condition rather than prostate cancer.

Blood in the urine or semen is more often caused by infections, inflammation, BPH, urinary tract stones or other non-cancerous conditions affecting the urinary or reproductive system. It is seldom possible to determine the cause of this bleeding based on symptoms alone, and any episode of blood in the urine or semen should be evaluated by a doctor, especially if it recurs or persists.

When prostate cancer causes bleeding, it is often because the tumour is disrupting nearby blood vessels or affecting the surrounding tissues. The need for prompt medical assessment is greater if the bleeding is accompanied by other concerning symptoms, such as difficulty urinating, a weak urine stream, persistent pain in the pelvis, hips or lower back, unexplained weight loss or worsening urinary problems.

Why Can Prostate Cancer Cause Pain in the Pelvis or Lower Back?

Prostate cancer can cause pain when it grows beyond the prostate and begins to affect nearby tissues, nerves or surrounding structures. However, pain is less commonly an early symptom and is more often associated with more advanced disease.

Some men may experience painful urination or painful ejaculation if the prostate becomes inflamed or if the tumour narrows the urethra or affects the surrounding reproductive structures. Persistent pain in the pelvis, hips or lower back may occur if the cancer extends beyond the prostate or, in more advanced cases, spreads to the pelvic bones or spine.

Pelvic or lower back pain may also result from muscle strain, arthritis, prostatitis, urinary tract infections or other non-cancerous conditions. As these symptoms can have many different causes, persistent or worsening pain, particularly when accompanied by urinary changes or blood in the urine or semen, should be assessed by a doctor.

Can You Have Prostate Cancer Without Any Symptoms?

It is possible for early prostate cancer to have none of these symptoms at all. Many cases of prostate cancer are often detected incidentally, during screenings or investigations performed for separate reasons.

In many cases, prostate cancer develops slowly and remains confined to the prostate without affecting urination or causing pain. As a result, many men are only diagnosed after an elevated prostate-specific antigen (PSA) blood test or an abnormal finding during a digital rectal examination (DRE), even though they feel completely well.

Early prostate cancer can be asymptomatic, and as such, men with a higher risk of developing the disease, such as those aged 50 and above or with a family history of prostate cancer, may benefit from discussing screening with their doctor. Early detection may identify prostate cancer before symptoms develop, allowing for more treatment options if cancer is found.

When Should You See a Doctor for Possible Prostate Cancer Symptoms?

You should see a doctor if you experience persistent urinary symptoms, blood in the urine or semen, or ongoing pain in the pelvis, hips or lower back. Although these symptoms are more commonly caused by non-cancerous prostate or urinary conditions, a timely assessment is important to identify the underlying cause and determine whether further investigation is needed.

Men aged 50 and above, as well as those with a family history of prostate cancer or other risk factors, should also consider discussing prostate cancer screening with a doctor, even if they do not have symptoms. At the International Urology, Fertility & Gynaecology Centre, care is led by Dr Michael Wong, our medical director and senior consultant urologist, who provides comprehensive assessment, diagnosis and treatment for prostate cancer and other urological conditions.

As early prostate cancer can develop without noticeable signs, appropriate screening may play an important role in detecting the disease before it progresses. If you have persistent urinary symptoms or are concerned about your prostate health, contact us to arrange a consultation today.

Frequently Asked Questions (FAQs) About Early Prostate Cancer