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Prostate Enlargement

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Prostate Enlargement

Very common after 50, usually benign — but the symptoms overlap with prostate cancer.

£40 · 20 minutes

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6am to 10pm, seven days

Assessed and treated by a GMC-registered GP

Prescriptions, sick notes and referral letters included

A written treatment plan after every appointment

Your NHS records in the room, with your consent

Clinically reviewed by Dr Mohammad Khan · Last reviewed

August 23, 2026

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A 20-minute appointment with a GMC-registered GP for £40. No membership required.

Private GP care led personally by Dr Mohammad Zubair Khan, GMC 7563469.

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Sick Notes
Private Prescriptions
Blood Tests
Menopause & HRT
Weight Management
Mental Health
Specialist Referrals

Overview

The prostate sits below the bladder and surrounds the urethra. From around the age of 40 it gradually enlarges in most men — benign prostatic hyperplasia — and by the seventies the majority have some degree of it. It squeezes the tube urine passes through, and the bladder muscle thickens as it works harder, which is where the symptoms come from.

Four things are worth saying at the outset.

1. Benign prostatic enlargement is not prostate cancer, does not turn into it, and does not increase your risk of it. They are different processes affecting different parts of the gland. They can coexist — both are common in older men — which is why symptoms get assessed rather than assumed. But an enlarged prostate is not a pre-cancerous state, and a great many men spend years quietly frightened of something that is not the case.

2. Prostate cancer usually causes no urinary symptoms at all in its early stages. This is the point that catches people out. Waiting for symptoms is not a strategy for detecting it, and having no symptoms is not reassurance.

3. Symptom severity has almost nothing to do with prostate size. A modestly enlarged prostate can cause considerable trouble; a very large one can cause none. Treatment is aimed at how much it bothers you, not at a measurement.

4. If you cannot pass urine at all and your bladder is painfully full, that is acute urinary retention — go to A&E. It is the one genuine emergency here.

Common symptoms

Voiding symptoms — difficulty getting urine out

  • A weak or slow stream
  • Hesitancy — standing there waiting for it to start
  • Straining to pass urine
  • An intermittent stream that stops and starts
  • Dribbling at the end, and wetting afterwards
  • A feeling that the bladder has not emptied

Storage symptoms — which are usually the more troublesome

  • Frequency — going far more often than you used to
  • Urgency — needing to go immediately, sometimes with leakage
  • Nocturia — waking at night to pass urine. Frequently the symptom that finally prompts someone to seek help, because of what it does to sleep

Storage symptoms come from the bladder muscle becoming overactive after years of working against an obstruction — which is why they can persist for a while even after the obstruction is treated.

What is not caused by an enlarged prostate

Worth knowing, because assuming everything is the prostate delays other diagnoses:

  • Erectile dysfunction — unrelated, though it often appears in the same age group. See our erectile dysfunction page
  • Pain on passing urine — that suggests infection or prostatitis
  • Nocturia alone with no daytime symptoms — which often turns out to be fluid timing, diuretic tablets, sleep apnoea, heart failure or diabetes rather than the prostate at all

Red flag features

  • Visible blood in the urine — always needs investigating, at any age
  • Complete inability to pass urine with a painful full bladder — an emergency
  • Unexplained weight loss
  • New persistent bone pain, particularly in the back, hips or pelvis
  • Loss of appetite, or feeling generally unwell alongside urinary symptoms
  • Recurrent urinary infections in a man — which is never simply bad luck and always warrants assessment

Causes and risk factors

Why it happens

Hormonal change with age. Testosterone is converted within the prostate to dihydrotestosterone, which drives growth of the tissue around the urethra. It is a normal ageing process rather than a disease you caught — which is also why the drugs that block that conversion work.

What increases the likelihood

  • Age — by far the dominant factor
  • Family history, particularly a father or brother who needed treatment
  • Obesity, diabetes and metabolic syndrome
  • Physical inactivity

Things that make symptoms worse without enlarging the prostate

Often the most useful part of the assessment, because several are removable:

  • Decongestants — pseudoephedrine and similar, in cold remedies. These can precipitate acute retention in a man with an enlarged prostate, and it is a genuinely common cause of a night in A&E
  • Anticholinergic medicines — including some antihistamines, antidepressants and bladder drugs
  • Diuretics, particularly if taken in the evening
  • Caffeine and alcohol, both of which irritate the bladder and increase urine production
  • Constipation, which mechanically worsens everything
  • Cold weather, and long periods sitting still

What people worry about that does not apply

  • Sexual activity, or the lack of it — neither causes nor prevents prostate enlargement
  • Cycling — which can transiently raise a PSA reading but does not cause enlargement
  • Diet — no food causes it, whatever is sold on that basis

What else can cause the same symptoms

  • Overactive bladder — storage symptoms without obstruction, which needs different treatment
  • Urethral stricture — particularly after catheterisation, instrumentation or infection
  • Diabetes — which causes frequency through high urine volumes
  • Neurological conditions affecting bladder control
  • Chronic prostatitis — more painful, and more common in younger men
  • Bladder or prostate cancer

How it is diagnosed

Much of this is done through history and tests, both of which work remotely. What we cannot do is examine your prostate, and we will say so plainly rather than working around it.

What we do in the consultation

  • A formal symptom score (IPSS) — seven questions plus a quality-of-life question, producing a number. It matters because it turns "it's a bit annoying" into something measurable, and because repeating it after treatment is how you know whether the treatment worked
  • Which symptoms bother you most — voiding or storage. This changes the drug choice
  • How much it actually affects your life. Mild symptoms that do not bother you need no treatment at all, and that is a legitimate outcome
  • Full medication review, looking specifically for decongestants, antihistamines and anticholinergics
  • Fluid, caffeine and alcohol intake, and when in the day
  • Red flag screening: blood in urine, weight loss, bone pain, retention episodes
  • Family history of prostate cancer, and ethnicity — risk is substantially higher in Black men, and starts younger

The single most useful thing you can do

A three-day bladder diary — times, volumes, and what you drank. It regularly rewrites the diagnosis. Men convinced their prostate is waking them five times a night quite often turn out to be drinking two litres after seven o'clock, or to have nocturnal polyuria, which is a different problem with different treatment.

Tests we arrange

  • Urine dipstick and culture — to exclude infection and check for blood
  • PSA — after a proper discussion, covered below
  • Kidney function — which matters, because long-standing obstruction can damage the kidneys silently
  • HbA1c, because diabetes is a common and easily missed cause of frequency
  • Full blood count where indicated

PSA — the honest version

PSA is worth discussing properly rather than simply ticking:

  • An enlarged prostate raises PSA by itself. So does infection, recent ejaculation, cycling, and a prostate examination. A raised result does not mean cancer, and it causes a great deal of avoidable alarm
  • A normal PSA does not exclude prostate cancer. A meaningful proportion of cancers occur with a PSA in the normal range
  • There is no national screening programme in the UK, because the evidence on whether screening saves enough lives to justify the over-diagnosis is genuinely unsettled. Any man over 50 can request the test, and we will support that choice either way
  • Practical preparation matters: no ejaculation for 48 hours, no vigorous cycling for 48 hours, no test within six weeks of a urine infection. Ignoring this produces raised results and unnecessary referrals
  • MRI before biopsy is now standard, which has considerably reduced unnecessary biopsies

What needs to be done in person

A digital rectal examination is part of a complete assessment and cannot be done remotely. So can neither flow rate measurement nor bladder ultrasound to check residual volume. We arrange these, and we refer to urology where the picture warrants it.

How we treat it online

1. Watchful waiting — a real option, not a fob-off

For mild symptoms that do not much bother you, no treatment is the right treatment, with lifestyle measures and a review. Symptoms fluctuate, and a proportion of men improve without anything at all.

2. Alpha blockers — tamsulosin, alfuzosin, doxazosin

They relax the muscle in the prostate and bladder neck. First choice for most men.

  • They work within days to a couple of weeks, which is the practical advantage
  • They do not shrink the prostate or change what happens long term
  • Common effects: dizziness on standing — take the first dose at bedtime — nasal congestion, and retrograde ejaculation, where semen goes into the bladder. Harmless, but alarming if nobody warned you

The safety point that matters most and is almost never mentioned: if you take tamsulosin or a similar drug and are having cataract surgery, tell the eye surgeon — even if you stopped it years ago. These drugs cause intraoperative floppy iris syndrome, which complicates the operation if the surgeon is not expecting it. Knowing in advance makes it entirely manageable.

3. 5-alpha reductase inhibitors — finasteride, dutasteride

These genuinely shrink the prostate, and reduce the risk of retention and of eventually needing surgery.

  • They take three to six months to work. Men who stop at six weeks concluding they do nothing are stopping too early, and this is worth knowing before you start
  • Best for a genuinely enlarged gland
  • Sexual side effects — reduced desire, erectile difficulty, reduced ejaculate — occur in a minority and usually settle. Some men report persistent symptoms after stopping, which remains debated; we will discuss it honestly rather than dismissing it

The critical detail: these drugs roughly halve your PSA reading. After six months on treatment, a PSA result must be doubled to be interpreted correctly. A man on finasteride with a PSA of 3 effectively has a PSA of 6. Failing to account for this is a well-recognised route to a missed prostate cancer, and it is why we record it clearly and tell you to mention it to any doctor requesting the test.

4. Combination and add-ons

  • An alpha blocker plus a 5-alpha reductase inhibitor is more effective than either alone for larger prostates — fast relief now, shrinkage later
  • An anticholinergic or mirabegron where urgency and frequency dominate and obstruction is not severe. Used carefully, with residual volume checked first, because of retention risk
  • Tadalafil daily — licensed for both prostate symptoms and erectile dysfunction, and a sensible choice where a man has both

5. Where we refer

Urology, for: retention, kidney impairment, recurrent infections, bladder stones, visible blood in the urine, symptoms not controlled by medication, or a man who would rather have a definitive procedure than take tablets for twenty years. TURP and the newer minimally invasive options are effective, and some preserve ejaculation better than others — worth asking about specifically.

6. What we will not do

  • Start a 5-alpha reductase inhibitor without a baseline PSA and without explaining the doubling rule
  • Attribute visible blood in the urine to an enlarged prostate
  • Treat prostate symptoms remotely in a man who has never been examined
  • Prescribe an anticholinergic without considering retention risk
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Important

When to seek urgent help

Go to A&E immediately for:

  • Complete inability to pass urine with a painful, distended lower abdomen — acute urinary retention. This needs a catheter urgently; delay risks kidney damage. Do not wait to see if it settles
  • Fever with shivering and severe pain in the loin or lower abdomen with urinary symptoms — possible severe infection or sepsis
  • Passing large clots of blood, or being unable to pass urine because of clots
  • Confusion or drowsiness in an older man with urinary symptoms

Seek same-day advice for:

  • Passing only small amounts with a constantly full-feeling bladder
  • Fever with pain in the perineum or on passing urine
  • New leg weakness or numbness in the saddle area with urinary change — which needs excluding as a spinal problem

Arrange an urgent appointment for:

  • Visible blood in the urine — at any age, even once, even painless. Especially painless
  • New persistent bone pain, particularly back, hips or pelvis
  • Unexplained weight loss with urinary symptoms
  • Recurrent urinary infections

Book a routine consultation for:

  • Urinary symptoms affecting your sleep, work, travel or confidence
  • Getting up more than once or twice a night
  • A discussion about PSA testing — particularly if you are over 50, or over 45 with a family history or of Black ethnicity, where risk is higher and starts earlier
  • Symptoms starting or worsening after a new medication
  • Existing treatment that is not working, or side effects you are putting up with
  • Before cataract surgery, if you take or have taken tamsulosin — so it can be flagged to the surgeon

Prevention and self-care

Fluid timing — the highest-yield change

  • Stop drinking two to three hours before bed. Most men do not realise how much of their nocturia is simply timing
  • Do not reduce total fluid — that concentrates the urine, irritates the bladder and risks constipation. Move it earlier in the day instead
  • If you take a water tablet, ask whether it can be taken in the morning rather than the evening. A small change with a large effect on sleep
  • Reduce caffeine and alcohol, particularly after mid-afternoon. Both irritate the bladder and increase urine output
  • Fizzy drinks and artificial sweeteners bother some men considerably

Bladder technique — small things that work

  • Double voiding: pass urine, wait 30 seconds, then try again. It genuinely reduces residual volume
  • Urethral milking after finishing — gentle upward pressure behind the scrotum — to clear the last of it and reduce post-void dribbling. Rarely explained, and effective
  • Take your time and do not strain
  • Bladder training for urgency: delay by a few minutes at a time, building gradually
  • Pelvic floor exercises — for men too, and consistently under-taught

General health

  • Treat constipation, which worsens every urinary symptom mechanically
  • Stay active — physical activity is associated with fewer symptoms
  • Lose excess weight; obesity and diabetes both worsen it
  • Keep warm; symptoms are reliably worse in cold weather
  • Move regularly on long journeys and long periods sitting

The medicines to be careful with

Avoid over-the-counter decongestants — pseudoephedrine and similar, in cold and flu remedies. In a man with an enlarged prostate these can tip you into acute retention, which means a catheter and a trip to hospital. Check the packet, and ask a pharmacist if unsure. The same caution applies to some sedating antihistamines.

Supplements

Saw palmetto is the most-sold remedy here, and good-quality trials show it performs no better than placebo. It is not harmful, and if you want to try it that is your call — but it should not delay effective treatment. The same applies to pumpkin seed and beta-sitosterol preparations.

Worth saying

Men wait an average of several years before raising urinary symptoms, usually out of embarrassment or fear of what will be found. Meanwhile the bladder is working against resistance, and the changes it undergoes are not always fully reversible. Getting assessed early gives you more options, not fewer.

NHS or private

Your NHS GP assesses and treats prostate enlargement free, and the medications — tamsulosin, finasteride, dutasteride — are all cheap generics. NHS urology and surgery are free on referral.

The cheapest useful tool is free and is genuinely diagnostic: a bladder diary. Recording what you drink and when you pass urine over three days tells a urologist more than most tests, and it frequently identifies the real problem — which is often fluid timing, caffeine or alcohol rather than the prostate.

Simple measures cost nothing and work: reducing caffeine and alcohol, avoiding fluids in the two hours before bed, and double voiding.

Where a consultation genuinely earns its fee is the PSA conversation, which is more nuanced than most men are told. An enlarged prostate itself raises PSA, so a modestly raised result in a man with prostate symptoms often reflects the enlargement rather than cancer — but distinguishing them needs proper discussion of what the test can and cannot tell you. PSA is a decision, not a routine test.

The other genuinely useful conversation is about medication trade-offs. Finasteride and dutasteride can cause sexual side effects that occasionally persist, and they halve PSA readings — which must be accounted for in any future interpretation.

What needs urgent care: complete inability to pass urine with a painful full bladder — acute retention, which is an emergency.

Evidence and guidelines

NICE CG97, Lower urinary tract symptoms in men: management, is the principal reference. It recommends assessment including a frequency-volume chart, symptom scoring using the IPSS, and a discussion of PSA testing before it is offered.

CG97 recommends conservative management first — fluid advice, bladder training, and containment products — before drug treatment for mild to moderate symptoms.

CG97 recommends alpha blockers such as tamsulosin for moderate to severe symptoms, and 5-alpha reductase inhibitors such as finasteride or dutasteride where the prostate is enlarged and there is a higher risk of progression — noting these take up to six months to produce their full effect.

CG97 is explicit that 5-alpha reductase inhibitors reduce serum PSA by approximately 50%, which must be accounted for when interpreting any subsequent result.

NICE NG12 and the NHS Prostate Cancer Risk Management Programme govern PSA testing, which is offered following an informed discussion rather than as routine screening.

CG97 also covers acute urinary retention as requiring immediate catheterisation and hospital assessment.

Common questions

Does an enlarged prostate mean I'll get prostate cancer?

No. They are separate conditions affecting different parts of the gland, and benign enlargement does not become cancer or make it more likely. Both are common in older men, so they often coexist — which is why symptoms are assessed properly rather than assumed. But an enlarged prostate is not a pre-cancerous state.

If I have no symptoms, does that mean I don't have prostate cancer?

Unfortunately not, and this is the point that catches men out. Early prostate cancer usually causes no urinary symptoms at all. Symptoms tend to come from benign enlargement. Waiting to feel something is not a way of detecting it — which is exactly why the PSA conversation exists.

Should I have a PSA test?

It is a genuine choice rather than an obvious yes, which is why there is no national screening programme. PSA rises with benign enlargement, infection, cycling and ejaculation, and can be normal despite cancer being present. That means false alarms and false reassurance both happen. Any man over 50 can request it — over 45 if you are Black or have a family history, where risk is higher and earlier. We will talk it through properly and support whichever way you decide.

How long before treatment works?

Depends which. Alpha blockers like tamsulosin work within days to a couple of weeks. Finasteride and dutasteride take three to six months, because they work by shrinking the gland. A great many men abandon finasteride at six weeks believing it does nothing — knowing the timescale in advance is what prevents that.

Why does my semen seem to disappear?

That is retrograde ejaculation — semen passing back into the bladder rather than out. It is a common effect of alpha blockers, it is harmless, and it clears in the next urine. It does affect fertility while you are on the drug, so mention it if that matters to you. Alarming if nobody warned you, which is usually the case.

I'm on finasteride and my PSA came back low. Is that good news?

Check it has been interpreted correctly. These drugs roughly halve the PSA reading, so after six months on treatment the result needs doubling to be meaningful — a PSA of 3 is effectively 6. Missing this is a recognised route to a delayed cancer diagnosis. Always tell whoever requests the test that you take it.

Does saw palmetto work?

Good-quality trials say no better than placebo, despite it being the most widely sold remedy for this. It is not dangerous, so if you want to try it that is reasonable — the concern is men using it for years while symptoms progress and the bladder changes, when effective treatment was available.

Do I have to have surgery eventually?

No. Most men are managed with tablets or with nothing at all, and symptoms fluctuate rather than marching steadily worse. Surgery is for men whose symptoms are not controlled, who have complications like retention or kidney effects, or who would simply rather have it dealt with than take medication for decades. If it comes to that, ask specifically about the newer minimally invasive options, as some preserve ejaculation considerably better than a standard TURP.

Why am I up all night when my daytime symptoms are fine?

Then it may well not be your prostate. Nocturia without daytime symptoms often turns out to be fluid timing, an evening diuretic, sleep apnoea, heart failure or diabetes. A three-day bladder diary sorts this out faster than anything else, and it regularly changes the diagnosis entirely.

Dr Mohammad Zubair Khan, GMC-registered private GP and founder of Cheshire Clinics
Clinically reviewed by Dr Mohammad Zubair Khan, GMC 7563469
Last reviewed

August 23, 2026

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Questions about our service

How quickly can I be seen?

Same-day access is usually available, from 6am to 10pm, seven days a week. You choose a time that suits you rather than waiting on hold at 8am.

Will I see the same doctor each time?

Yes. Care is led personally by Dr Mohammad Khan, so you are not passed between clinicians. Continuity is the point of a small practice: someone who knows your history and is listening attentively rather than working through a checklist.

Can you see my NHS records?

Yes, with your consent. We can access your Summary Care Record during the consultation, so your current medications, allergies and significant history are in the room. That means fewer questions you have already answered elsewhere, and safer prescribing.

Are you trying to replace my NHS GP?

No. We are not here to replace GPs, only to support them. Your NHS practice remains responsible for your ongoing care, and with your consent we write to them after the consultation. We are useful when you need to be seen sooner, or want more time than a standard appointment allows.

What is included in the appointment?

Twenty unhurried minutes and a comprehensive assessment. A written treatment plan is included, along with any prescription, sick note or referral letter arising from the consultation, at no extra charge.

How much does it cost?

£40 for 20 minutes, self-pay. Membership is optional and never required. Priced for fairness, because we are not here to charge extortionate amounts for access to a doctor.

What does “treatable online” actually mean?

It means the diagnosis can usually be made from your history and photographs, and that treatment can be arranged safely without examining you. Where a condition is not marked treatable online, it is because examination is the diagnosis — listening to a chest, feeling an abdomen, examining an ear or a joint — or because a procedure or device is needed.

Can you prescribe antibiotics?

Yes, where there is a genuine bacterial infection — cellulitis, impetigo, bacterial urine infections, confirmed strep throat. We will also frequently tell you that you do not need one. Most sore throats, coughs, colds and earaches are viral, and an antibiotic gives you the side effects with none of the benefit.

What if the GP cannot help with what I need?

If your problem turns out to be genuinely outside what we can do remotely, the doctor will tell you straight away, point you to the right service, and refund your fee in full. We would rather do that than fill twenty minutes to justify the charge.

What should I do in an emergency?

Call 999 or go to A&E — do not book an online appointment and do not wait for a reply to an email. For urgent problems that are not emergencies, NHS 111 is available 24 hours a day, online or by phone, and can direct you to the right service.

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