I am 44 and otherwise 'fine.' Do I really need bloods before a tablet?
A blood-flow test you did not order
Work-up before a clock
DefinitionConsistent trouble getting or keeping an erection for sex
Most common pathVascular / endothelial
Sentinel windowED may precede a cardiac event by up to ~5 years
First toolsHistory, exam, targeted bloods
AUA on testosteroneMorning T in the ED evaluation
PillsAfter the hold, not instead of the work-up
Start with the finding, not with a favourite clock. The cavernosal arteries are narrow. Atherosclerosis shows there while larger coronaries are still quiet. That is why a urology visit can become a cardiology referral without anyone overreacting.
ED means a consistent or recurrent inability to get or keep an erection sufficient for satisfactory sex. One awkward night after a wedding is not a diagnosis. A pattern is.
AUA estimates tens of millions of men in the United States. Shared risk with cardiovascular disease is the part that matters clinically: age, smoking, diabetes, hypertension, dyslipidaemia, depression, obesity, a still life.
The Massachusetts Male Aging Study put age-adjusted ED at 28% in men with diabetes versus 10% without. Prevalence rises with diabetes duration. Sometimes the erection problem is how undiagnosed diabetes walks in.
AUA also notes prevalence near 46% in diabetic men over 50, versus about 24% in age-matched men without diabetes. Duration of diabetes raises relative risk further. A new A1c belongs in the first blood draw, not in a 'maybe later' pile.
Why the penis reports early
Erection needs arterial inflow and a venous seal. Anything that stiffens small arteries or wrecks endothelium shows up as a softer, shorter erection. Heart disease, high blood pressure, high cholesterol and diabetes travel that path.
Almost half of men with catheter-proven coronary disease have significant ED in some series. The calibre overlap is the simple explanation: the penile arteries are a similar size class to some coronary branches and age the same way.
Younger men with new ED deserve a harder look at future cardiac risk. AUA cites a marked rise in later cardiac events in that group. A tablet without blood pressure, glucose and lipids is a missed year.
Smoking and a sitting life are modifiable pieces of the same endothelial story. They will not wait politely while a PDE5 inhibitor does all the work. The tablet can still help. It does not cancel the vessel maths.
Metabolic syndrome - waist fat, high insulin, high pressure, high lipids - is the same cluster wearing a different name. Treating the cluster is part of treating the erection. A 25 mg tablet will not unclog an artery.
Independent shared risks listed by AUA include age, smoking, diabetes, hypertension, dyslipidaemia, depression, obesity and a sedentary life. Tick more than two and the 'psychogenic only' story gets thinner.
History, exam, then a short lab set
Visit
Sexual, medical, psychosocial history. Nitrate and QT drugs named out loud.
Exam
BP, genitals, androgen signs, focused neuro check.
Bloods
Glucose/A1c, lipids, morning testosterone; add-ons by context.
Hold
Nitrates or riociguat: no oral PDE5. Vardenafil also needs the QT pass.
Clock
Then 25 mg, 20 mg or 5 mg by week, food and organs - not by brand ads.
AUA wants a sexual, medical and psychosocial history, not a reflex prescription. Ask about morning erections, desire, ejaculation, pain, bend (Peyronie), and whether the problem is getting hard, staying hard, or both.
Exam is focused: blood pressure, genitals, testes, signs of hypogonadism, a basic neurological check. Most men do not need a Doppler on visit one.
Labs that earn their keep: A1c or fasting glucose, a lipid panel, and a morning testosterone. CBC, kidney and liver tests are common add-ons. Thyroid and PSA are situational. Penile duplex waits for trauma, Peyronie, or failure after a fair oral trial.
Mental-health screening is part of the same visit. Depression and anxiety cause ED and are caused by it. A tablet can still be reasonable while that work runs. Ignoring mood is how a 'failed PDE5' gets written on a man who never had quiet conditions.
IIEF or SHIM scores help track change. They do not replace the nitrate question. A perfect score next month still needs the hold if a GTN spray appears.
Refer when the story is trauma, a severe bend, failed orals after a fair trial, or a young man with a loud vascular signal. Doppler then earns its keep. It is optional on a first uncomplicated visit.
Where a PDE5 tablet sits after the work-up
AUA lists oral PDE5 inhibitors among first-line options after comorbidities are identified. There is still no ranked winner among sildenafil, tadalafil and vardenafil on erection success.
Helion's locks are practical, not a fourth guideline. Sildenafil 25 mg is the first short tablet and the food-sensitive clock. Tadalafil 20 mg is the as-needed long clock; daily 2.5-5 mg is the other habit. Vardenafil 5 mg is the short cousin after a QT pass.
Lifestyle change is not a moral extra. Weight, walking, smoking stop and sleep move endothelial function. They also make a later tablet look better. They do not replace a needed drug in a man with established vascular ED.
Shared decision-making is the AUA tone. Some men want the shortest clock. Some want leftover Saturday. Some want one tablet for urine and erections. Those preferences only count after the hold is clear.
If tablets fail after a fair trial, the next rungs are still the old ones: vacuum device, intraurethral or injected alprostadil, implant. Those are not punishments. They are the rest of the AUA list.
Nerves, hormones, mood, other tablets
Buckets that usually overlap
- Vascular: diabetes, lipids, hypertension, smoking, sedentary life
- Neurogenic: pelvic surgery, neuropathy, spinal or brain disease
- Hormonal: morning testosterone; LH/prolactin if T is low
- Psychogenic overlay: anxiety, depression, conflict - often mixed
- Drug-related: antihypertensives, SSRIs, anti-androgens, alcohol
Most files are mixed. A vascular base plus performance worry is common. Pure psychogenic ED exists, especially when morning and masturbatory erections are still firm and partnered sex fails. Do not use that pattern to skip glucose.
Nerve injury after pelvic surgery or radiation, spinal disease, multiple sclerosis and long diabetes neuropathy all cut the signal that should release nitric oxide. A PDE5 tablet can still help if some residual signal remains. It cannot invent a severed path.
Low testosterone more often dulls desire than it acts as the sole erection switch. AUA still wants a morning testosterone in the ED evaluation. If oral therapy fails and T was never measured, measure it then at latest.
Medicines matter: some older antihypertensives, many SSRIs, anti-androgens, opioids. Alcohol and other recreational drugs belong on the same list. The fix is sometimes a substitution, not a higher PDE5 rung.
Peyronie disease is a bend, a plaque, pain, or shortening - a structural problem. A PDE5 tablet may still help the erection. It will not straighten the plaque. That file needs a urology exam, not a larger milligram.
Sleep apnea is an under-asked partner. Night hypoxia and the vessel story travel together. A man who snores, wakes unrefreshed and loses morning erections needs a sleep question before a third INN.
The hold before any clock
Name nitrates before you name a favourite brand. A spray, patch, tablet, isosorbide product or popper closes sildenafil, tadalafil and vardenafil together. There is no 'gentle' PDE5 that sneaks past that chemistry.
Tadalafil's labelled emergency gap is at least 48 hours after the last dose, and only under monitoring if a nitrate then becomes necessary. Daily tadalafil keeps that problem continuous. Sildenafil's label will not even name a safe hour.
Vardenafil adds the QT avoid-list on top of the nitrate ban. A man on amiodarone can still have ED care. He should not have vardenafil as the default short tablet.
Cardiac fitness for sex is a separate question from the hold. Unstable angina, a very recent infarct, or decompensated failure need a cardiology pass before anyone discusses 25 mg, 20 mg or 5 mg.
Princeton-style risk strata still help: low-risk men can often start a PDE5 inhibitor in clinic. Intermediate and high-risk men need the cardiology pass first. ED treatment is not a stress test you invent at home.
If a man develops chest pain after a tablet, the work-up failed at the hold or the fitness step. Name the INN and the hour. Do not add a second tablet to 'see if it was indigestion.'
Other tablets that steal the erection
Some older beta-blockers and thiazides dull erections more than modern antihypertensives. A substitution can do more than a higher PDE5 rung. Do not stop a heart drug on a web page. Ask the prescriber which pressure tablet is the least sexual offender in his file.
SSRIs commonly delay orgasm and can soften erections. Bupropion is sometimes the swap when mood treatment is still required. That is psychiatry plus urology, not a 100 mg sildenafil patch.
Anti-androgens, GnRH analogues and some 5-alpha-reductase stories belong in the prostate-cancer and BPH file. Name them. A 20 mg tadalafil tablet will not outrun a castrate testosterone.
Opioids, heavy alcohol and recreational stimulants sit on the same list. The work-up is incomplete if those stay in the hallway.
Finasteride for hair or prostate can dull ejaculate volume and, in some men, desire. Ask before you blame 25 mg. The clock cannot restore a hormone axis a 5-alpha drug has turned down.
Treat the finding, then pick a tablet
If A1c is new, treat diabetes. If morning T is low and symptoms fit, that is an endocrine conversation. If the list hides a nitrate, stop shopping clocks.
Only after those holds do you match a week to a tablet: food-sensitive 25 mg, leftover 20 mg, or QT-screened 5 mg. The comparison page is for that step.
An erection past four hours, sudden vision loss, or sudden hearing loss after any PDE5 dose is same-day care. Those warnings belong to the class, not to one brand box.
If morning testosterone is low and desire fell with the erections, treat that axis before you keep climbing milligrams. A 20 mg tablet will not write libido that a low T has erased.
Bring the medicine boxes to the next visit. The hold is often hiding in a spray you forgot you still own.
This mailbag is the work-up, not a second comparison chart. Men write when they want a tablet without bloods, or when they think ED is only 'in the head.' I answer as a urologist who still sends people to cardiology. Teaching only. Your own history and labs decide whether 25 mg, 20 mg or 5 mg is even on the table.
Yes, at least glucose or A1c, lipids and a blood-pressure check. At your age, new ED is a vessel signal until proven otherwise. AUA treats ED as a possible early cardiac marker. Five quiet years of untreated diabetes is a high price for skipping a tube of blood.
Morning testosterone belongs in the same first pass, especially if desire fell with the erections. You can still leave with a prescription the same week if the hold is clear. The labs are not a stall tactic.
If a nitrate or a QT drug is hiding in a family-medicine list you never reread, the bloods will not catch that. Bring the boxes. The hold is a history question first. A 44-year-old with new ED and a clean list still gets glucose and lipids. Age does not make vessels optional.
Morning erections are still there. Is this only anxiety?
Preserved morning and masturbatory erections make a psychogenic overlay more likely. Partnered failure with intact solitary function is a real pattern. It is still not a licence to skip diabetes and lipids. Mixed files are the majority.
Anxiety also worsens vascular ED. A man with early endothelial disease plus fear of failure looks 'psychogenic' until the A1c comes back. Treat mood and still run the short lab set.
A PDE5 tablet can be part of that mixed plan. It does not replace talking about the relationship or the panic. It also does not wait for six months of therapy if the nitrate hold is clear and he wants a clock.
Which tablet after a normal work-up: 25 mg, 20 mg or 5 mg?
After the hold is clear, match the week. Light stomach and one planned evening: sildenafil 25 mg is a fair first tablet. Messy dinners and a leftover morning: tadalafil 20 mg. Blue tint on sildenafil plus a clean QT list: vardenafil 5 mg.
Twice-weekly sex or BPH symptoms on the side push daily tadalafil 2.5-5 mg instead of a 20 mg weekend habit. That split is the schedule page, not this work-up page.
If the work-up was not actually normal - new A1c, a nitrate, amiodarone - we are not choosing among those three locks. We are treating the finding or leaving the class.
He wants to skip the visit and order a generic. What does he miss?
He misses the hold. A nitrate in a drawer, a sotalol tablet, or Child-Pugh B liver disease will not appear on a checkout page. He also misses the sentinel work: diabetes, lipids, blood pressure, morning T.
AUA's first move is to identify organic and psychosexual comorbidities and treat or triage them. A tablet can still be appropriate. A tablet instead of that visit is how a first cardiac event gets a two-year head start.
If embarrassment is the barrier, say that. The visit can be short. The dangerous part is not the conversation. The dangerous part is a PDE5 tablet on top of a nitrate, or a year of failed pills while glucose stays unmeasured. A short clinic visit can do both: the hold and a first clock, if the file is clean.
Treat every answer here as general teaching, not a decision made for the individual who wrote in. What is right for you turns on your history, your bloods and the rest of your medicine list — and that is a conversation for a prescriber who can see all of it at once.
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