Not every enlarged prostate is cancer: How men can tell BPH, prostatitis and prostate cancer apart

New Delhi: Changes in urination can worry men, especially when they hear that prostate enlargement may be linked to cancer. However, an enlarged prostate does not automatically mean cancer, and several conditions affecting the prostate can cause similar symptoms despite having different causes. Benign prostatic hyperplasia (BPH) involves non-cancerous enlargement of the prostate, prostatitis refers to inflammation of the gland, and prostate cancer involves the uncontrolled growth of abnormal cells. The challenge is that weak urine flow, urgency and frequent urination may occur in more than one condition, while early prostate cancer may not cause noticeable symptoms. Prostate-specific antigen (PSA) levels can also rise in conditions other than cancer, making medical assessment important.

In a communication to News9 Digital, Dr Gokulakrishnan PJ, Lead Consultant and Head of the Department of Urology at Aster Whitefield Hospital, Bengaluru, and Dr Mallikarjuna C, Managing Director, Chief Consultant Urologist and Robotic Surgeon at the Asian Institute of Nephrology and Urology, Hyderabad, explain how these conditions differ, why symptoms can be misleading and why men should seek medical advice rather than panic or ignore urinary changes.

BPH: An enlarged prostate does not mean cancer

Benign prostatic hyperplasia, commonly known as BPH, is a non-cancerous enlargement of the prostate gland. The prostate surrounds the urethra, the tube that carries urine out of the bladder. As the gland grows, it can press on the urethra and interfere with the flow of urine. BPH generally develops gradually as men age.

Explaining the condition, Dr Gokulakrishnan PJ said, “Prostate enlargement, or benign prostatic hyperplasia (BPH), is the growth of the prostate gland without cancer. Since the prostate is located around the urethra, its enlargement affects the urination process.”

Men with BPH may experience a weak urine stream, difficulty starting urination, frequent urges to urinate, urgency and the need to get up during the night to pass urine. The stream may also stop and start during urination.

Dr Mallikarjuna C mentioned that the enlargement can restrict urine flow because of the prostate’s position around the urethra. He said, “BPH does not mean a man has cancer.”

Prostatitis: When prostate inflammation causes pain

Unlike BPH, which involves enlargement of the prostate, prostatitis refers to inflammation of the gland. It may be caused by a bacterial infection, although not all cases are linked to bacteria. The symptoms can vary depending on the type of prostatitis.

Explaining it, Dr Gokulakrishnan PJ said, “In contrast to BPH, prostatitis is a condition in which the prostate is inflamed; this inflammation may occur in case of bacterial infection.”

Men with prostatitis may experience a burning or painful sensation while urinating, pain in the lower abdomen or pelvic region, difficulty passing urine and pain during ejaculation. Acute bacterial prostatitis can also cause fever and chills.

Dr Mallikarjuna C noted that prostatitis can present differently from BPH, particularly when the inflammation is acute. He said, “Fever and chills may be present, but a man suffering from prostatitis may in addition experience a painful or burning sensation when urinating, pain in his pelvic area or lower abdomen, or pain with ejaculation.”

Prostate cancer: Early disease may have no symptoms

Prostate cancer involves the uncontrolled growth of abnormal cells in the prostate. One of the challenges is that the disease may not cause noticeable symptoms in its early stages. When symptoms do occur, they can resemble those associated with BPH, including difficulty urinating, frequent urination and waking up at night to pass urine.

Explaining why symptoms alone cannot establish a diagnosis, Dr Gokulakrishnan PJ said, “Prostatic carcinoma, on the other hand, is associated with the uncontrolled development of the prostate tissue, and it is sometimes challenging to diagnose because it may lack any clinical manifestations.”

Dr Mallikarjuna C also highlighted the difficulty of identifying prostate cancer based on symptoms alone. He said, “Prostate cancer can be tricky to spot, as prostate cancer in its early stages presents with no associated symptoms at all. The symptoms that do appear are often similar to those linked to BPH.”

This means that the presence of urinary symptoms does not automatically indicate cancer, while their absence does not rule it out. Men should not attempt to distinguish these conditions based only on how they feel or how frequently they urinate.

PSA levels cannot confirm cancer on their own

The prostate-specific antigen (PSA) test measures the level of PSA in the blood. Although PSA levels can be elevated in men with prostate cancer, an increase is not specific to cancer. BPH and prostatitis can also raise PSA levels, making the result one part of a broader clinical assessment.

Explaining this overlap, Dr Gokulakrishnan PJ said, “PSA is a non-specific marker for the disease, meaning that the increase in PSA levels can be associated not only with cancer but also with benign prostatic hyperplasia and prostatitis.”

Dr Mallikarjuna C added that PSA results need to be interpreted alongside other clinical factors. He said, “An increase in PSA is not equivalent to cancer and should be considered with the man’s age, symptoms, examination, other PSA levels and other factors.”

Therefore, a raised PSA result should not automatically be interpreted as a cancer diagnosis. A urologist can determine whether further assessment is needed based on the individual’s findings.

More than one prostate condition can occur together

BPH, prostatitis and prostate cancer are distinct conditions, but they are not necessarily mutually exclusive. A man may have BPH and prostatitis, BPH and prostate cancer, or more than one of these conditions at the same time. Identifying one condition does not automatically rule out another.

Highlighting the importance of investigating the cause of symptoms, Dr Gokulakrishnan PJ said, “What is important about these conditions is that they are not mutually exclusive. For example, a patient can suffer from BPH and prostatitis, BPH and prostate cancer, or perhaps all of them at once.”

The appropriate evaluation may include a urine test, PSA testing, a clinical examination and imaging. A biopsy may also be recommended when indicated. The investigations depend on the clinical assessment rather than urinary symptoms alone.

Dr Mallikarjuna C stressed that the key question is not simply whether a man has urinary symptoms, but what is causing them. He said, “The difference is not just whether a man presents with urinary symptoms but why he is presenting with that symptomatology.”

When should men consult a urologist?

Men should not panic when they notice changes in urination, but they should not ignore persistent or concerning symptoms either. A weak urine stream may be associated with BPH, while pelvic pain or burning during urination may point towards prostatitis. However, these symptoms are not enough to establish a diagnosis, and prostate cancer may remain symptom-free in its early stages.

Dr Mallikarjuna C advised men against delaying an assessment or becoming unnecessarily alarmed. He said, “Don’t guess, don’t self-medicate. See a urologist and let the tests, not fear, give you the answer.”

The central message is that an enlarged prostate is not necessarily cancer, but symptoms should be evaluated to identify their cause. A urologist can determine which tests are appropriate and whether further investigation is needed. Timely assessment can help men avoid both unnecessary fear and delays in identifying a condition that requires attention.

Disclaimer: This article is based on inputs shared by the doctors mentioned in this article. The findings should not be considered medical advice or used for self-diagnosis or treatment. Consult a qualified healthcare professional for personalised guidance.