Quick Answer
The prostate can cause several health concerns as men get older, but urinary symptoms do not automatically mean prostate cancer. One of the most common causes is benign prostatic hyperplasia (BPH), a noncancerous enlargement of the prostate.
Common BPH symptoms include a weak urine stream, difficulty starting urination, frequent or urgent urination, and waking repeatedly at night to urinate. Evaluation may include your medical history, physical examination, urine tests, PSA when appropriate, and other urinary or prostate tests.
Treatment depends on how troublesome the symptoms are, whether complications are developing, prostate characteristics, other medical conditions, and personal preferences.
The prostate is a gland in the male reproductive system. It sits below the bladder and surrounds part of the urethra, the tube through which urine leaves the bladder. The prostate contributes fluid to semen.
As men grow older, the prostate commonly enlarges. This is called benign prostatic hyperplasia (BPH). BPH is not prostate cancer, although BPH and prostate cancer can occur in the same person.
Below I answer some of the most common questions men ask me about prostate enlargement, urinary symptoms, PSA testing, prostate cancer and treatment.
What Are the Symptoms of an Enlarged Prostate?
An enlarged prostate can narrow or obstruct the urethra and interfere with normal bladder emptying. However, prostate size and symptom severity do not always correspond: some men with a substantially enlarged prostate have relatively mild symptoms, while others experience troublesome symptoms with less enlargement.
Common BPH symptoms include:
- difficulty starting urination
- a weak or interrupted urine stream
- straining to urinate
- dribbling after urination
- feeling that the bladder has not emptied completely
- frequent urination
- a sudden or urgent need to urinate
- waking several times during the night to urinate
Is Blood in the Urine a Normal BPH Symptom?
Blood in the urine can sometimes occur in men with an enlarged prostate, but it should not simply be assumed to be caused by BPH. Infection, urinary stones, kidney or bladder conditions and urinary tract cancers are among the other possible causes.
Visible blood in the urine should therefore be discussed with a healthcare professional. Similarly, blood in semen, persistent painful urination or painful ejaculation deserves appropriate assessment rather than being attributed automatically to prostate enlargement.
How Is an Enlarged Prostate Diagnosed?
There is no single test that answers every question about BPH. Your doctor will usually begin by discussing your urinary symptoms, medicines, medical history and how much the symptoms affect your daily life.
Depending on the situation, assessment may include a physical examination, digital rectal examination, urinalysis, a PSA blood test, measurement of urine remaining in the bladder after urination, urine-flow testing, ultrasound or other investigations.
You can read more about the different investigations in my guide to prostate tests.
How Is an Enlarged Prostate Treated?
Not every man with BPH needs medication or surgery. If symptoms are mild and there are no concerning complications, monitoring and lifestyle changes may be appropriate.
When symptoms are more troublesome, BPH medications may be considered. Alpha blockers can relax smooth muscle around the prostate and bladder outlet to improve urinary symptoms. In appropriately selected men with prostate enlargement, 5-alpha-reductase inhibitors such as finasteride or dutasteride can reduce prostate volume over time and reduce the risk of progression.
Other men may be candidates for minimally invasive procedures or BPH surgery, particularly when medicines do not provide adequate relief or complications such as recurrent urinary retention develop.
The appropriate choice depends on symptoms, prostate size and anatomy, complications, other medical conditions, medication side effects, sexual priorities and personal preferences. My overview of BPH treatment options explains these choices in more detail.
When Are Urinary Symptoms an Emergency?
Other symptoms that warrant medical assessment include visible blood in the urine, fever or chills with urinary symptoms, recurrent urinary infections, severe pain, or worsening problems emptying the bladder.
What Is a Prostate Exam?
People often use the term “prostate exam” to mean a digital rectal examination (DRE). During a DRE, a healthcare professional gently inserts a lubricated, gloved finger into the rectum to feel the back surface of the prostate.
The examination can provide information about prostate size, consistency, tenderness and certain abnormalities. However, a DRE by itself cannot diagnose either BPH or prostate cancer.
What Is a PSA Test?
Prostate-specific antigen, or PSA, is a protein produced by prostate tissue. A PSA blood test can provide useful information during evaluation of certain prostate conditions and is also used in prostate-cancer screening and follow-up.
An elevated PSA does not automatically mean prostate cancer. PSA may also be affected by BPH, inflammation or infection and other factors. An abnormal result therefore needs to be interpreted in clinical context.
When Should I Be Checked for Prostate Cancer?
There is no single age at which every man should automatically undergo the same prostate-cancer screening schedule. Screening should be an informed decision made after discussing the potential benefits, limitations and harms of testing with a healthcare professional.
The appropriate time to begin that discussion depends on individual risk. Factors such as age, family history, ancestry, inherited genetic risk, overall health and life expectancy can influence the decision.
Men at increased risk may need to begin this conversation earlier than men at average risk. PSA is generally the principal blood test used when screening is chosen; a DRE may also be performed in selected circumstances.
Does a High PSA Mean I Have Prostate Cancer?
No. PSA is an important clinical tool, but PSA alone does not diagnose prostate cancer.
If a PSA result is concerning, the next step depends on the PSA level and pattern, age, prostate size, examination findings, family history and other risk factors. A clinician may repeat the PSA or consider additional testing, imaging such as prostate MRI, specialist assessment and, when appropriate, prostate biopsy.
How Is Prostate Cancer Diagnosed?
Prostate cancer diagnosis is based on more than a PSA result. When cancer is suspected, evaluation may involve PSA testing, clinical examination, prostate MRI and other risk-assessment tools.
A prostate biopsy may ultimately be required to obtain tissue that can be examined for cancer cells. If cancer is found, the biopsy provides information such as Grade Group/Gleason grading that helps guide subsequent decisions.
How Is Prostate Cancer Treated?
There is no single treatment that is appropriate for every prostate cancer.
Some men with low-risk localized disease may be managed with active surveillance rather than immediate treatment. Other patients may require surgery, radiation therapy, hormone therapy or other treatments, depending on the characteristics and extent of the cancer.
Important factors include PSA, Grade Group/Gleason score, stage, imaging and biopsy findings, age, overall health, expected benefits and risks, and the patient’s preferences.
Are There Natural Remedies for an Enlarged Prostate?
Dietary supplements are widely marketed for prostate health, but “natural” does not mean proven or risk-free.
For example, saw palmetto is one of the best-known supplements promoted for BPH. Research has produced inconsistent results, and rigorous studies have not shown ordinary saw palmetto products to reliably improve BPH symptoms or shrink the prostate.
Other plant products have also been studied, but evidence varies considerably between preparations and is generally less established than for standard BPH treatments.
If you are considering supplements, discuss them with your healthcare professional, particularly if you take prescription medicines. My guide to natural remedies for enlarged prostate explains what the evidence does and does not support.
Can Prostate Problems Cause Erectile Dysfunction?
BPH and erectile dysfunction often occur in the same age group, but that does not mean an enlarged prostate directly causes every case of ED.
Age, cardiovascular disease, diabetes, smoking, medicines, hormonal factors and psychological factors can all contribute to erectile difficulties. Some treatments for BPH or prostate cancer can also affect sexual function, ejaculation or erections.
If urinary and sexual symptoms occur together, tell your doctor about both. This can influence the choice of treatment.
Can Diet Prevent BPH or Prostate Cancer?
A nutritious diet is worthwhile for overall health, but no particular food, supplement or “prostate diet” has been proven to prevent BPH or guarantee protection against prostate cancer.
A practical approach is to follow a generally healthy eating pattern emphasizing vegetables, fruits, whole grains, legumes and other minimally processed foods while maintaining a healthy weight and staying physically active.
These habits support cardiovascular and metabolic health as well as general wellbeing, but they should not replace appropriate medical evaluation when prostate or urinary symptoms develop.
How Can I Protect My Prostate and Urinary Health?
Rather than searching for a single prostate-protecting food or supplement, I encourage men to pay attention to changes in urinary function and discuss persistent symptoms with their healthcare professional.
Review your medicines if urinary symptoms develop, remain physically active, avoid smoking, maintain good cardiovascular and metabolic health, and discuss prostate-cancer screening according to your individual risk rather than relying on a one-size-fits-all schedule.
A weak stream, frequent urination or waking repeatedly at night is common as men get older, but these symptoms should not automatically be labelled “just an enlarged prostate.” BPH is common, but other conditions can cause similar symptoms. The first goal is to understand what is causing the problem; treatment decisions come after that.
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Prostate Problems and Urinary Retention.
American Cancer Society. Recommendations for Prostate Cancer Early Detection.
National Center for Complementary and Integrative Health (NCCIH). Benign Prostatic Hyperplasia and Complementary Health Approaches.