Compare conditions

Put any two — or three — conditions side by side, adult or pediatric, to spot the look-alike differences fast, row by row.

Erectile Dysfunction

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In one line

·The penis cannot get hard enough for sex or stay hard long enough to finish.

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Normal physiology

·An erection is a hydraulic event: blood rushes into spongy chambers in the penis, gets trapped, and makes it firm. That process depends on healthy blood vessel lining, open arteries, working nerves, enough male hormone, and a brain that sends the right signals.

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What goes wrong

·Erectile dysfunction happens when any link in the erection chain breaks: the brain or nerves cannot send the signal, the blood vessel lining cannot make nitric oxide, the arteries are too stiff or clogged to let blood in, the veins leak blood back out too soon, or there is not enough testosterone to prime the system. Most of the time, one upstream break explains every symptom.

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Hallmark signs

·Trouble getting or keeping an erection firm enough for sex
·Erections that are softer than they used to be
·Normal erections during sleep or in the morning, but trouble during partnered sex
·Trouble began suddenly after a stressful event, new relationship worry, or depression
·Gradual worsening over months or years, especially with diabetes, high blood pressure, or high cholesterol
·Low interest in sex or low energy overall
·Taking medicines for blood pressure, depression, or prostate enlargement
·Pain, numbness, or a curve in the penis

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Red flags · escalate now

·New trouble with erections plus chest pain, shortness of breath, or pain in the legs when walking — may signal blocked arteries in the heart or legs that need urgent care
·Sudden complete loss of all erections including morning ones, especially after pelvic surgery, radiation, or a bike or straddle injury — may mean nerve or blood-vessel damage
·Erection lasting more than four hours (priapism) — trapped blood can clot and destroy the spongy tissue, causing permanent damage if not drained quickly
·New numbness or tingling in the groin, trouble controlling the bladder or bowels, or weakness in the legs — may signal spinal-cord compression that needs emergency imaging and treatment

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Workup

·Fasting lipid panel (total cholesterol, LDL, HDL, triglycerides)
·Hemoglobin A1c
·Morning total testosterone (before 10 AM)
·Thyroid-stimulating hormone (TSH)
·Resting 12-lead EKG
·Fasting blood glucose
·Prolactin level (only if low libido, gynecomastia, or visual symptoms are present)

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Treatment

·Lifestyle modification — exercise 150 minutes per week (brisk walking, cycling, swimming), lose weight if BMI ≥ 25, stop smoking completely, limit alcohol to ≤ 2 drinks per day, and control blood sugar and blood pressure to target
·PDE5 inhibitor — sildenafil 50–100 mg taken 1 hour before sex, or tadalafil 10–20 mg taken 30 minutes before sex (or tadalafil 5 mg daily if sex is frequent)
·Stop or switch the offending medication — change SSRI to bupropion (does not raise serotonin), switch beta-blocker or thiazide diuretic to an ACE inhibitor or ARB, taper and stop opioids if possible, stop finasteride, avoid antihistamines
·Testosterone replacement therapy (topical gel 50–100 mg daily, or intramuscular injection 100–200 mg every 2 weeks) — ONLY if morning total testosterone is confirmed < 300 ng/dL on two separate tests
·Cognitive-behavioral therapy (CBT) or couples sex therapy with a licensed therapist — 8 to 12 weekly sessions focused on performance anxiety, communication, relationship conflict, and gradual exposure (sensate focus exercises)
·Vacuum erection device (VED) — a plastic cylinder placed over the penis with a hand pump that creates negative pressure, drawing blood into the corpora cavernosa, then a constriction ring placed at the base to trap blood for up to 30 minutes
·Intracavernosal injection (ICI) — alprostadil (prostaglandin E1) 5–40 mcg injected directly into the side of the penis 5–10 minutes before sex, or trimix (alprostadil + phentolamine + papaverine) if alprostadil alone fails

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NCLEX trap

·A young man with erectile dysfunction needs blood pressure checked, heart risk checked, and medicines reviewed first — because erectile dysfunction in young men is often a warning sign of early blood vessel disease or a bad medicine side effect. Fix the upstream break, not just the symptom.
·Morning erections can happen even with mild blood vessel disease because they use different nerve signals. Morning erections rule out severe nerve damage, but you still need to check blood pressure, leg pulses, and cholesterol in men with erectile dysfunction — because blood vessel disease in the penis often spreads to the heart.
·Erectile dysfunction is a blood vessel problem in most men over 40, especially those with high blood pressure, diabetes, or smoking history. Assume blood vessel disease until exam and tests prove otherwise. Missing it means missing his heart attack risk.
·Some blood pressure medicines (alpha-blockers like tamsulosin) cause erectile dysfunction and should be switched. Never mix sildenafil with nitrates (like nitroglycerin for chest pain) — this causes a dangerous blood pressure drop that can kill. Always review his whole medicine list before starting erectile dysfunction treatment.
·Most men with erectile dysfunction have normal testosterone. Only test testosterone if erectile dysfunction comes with tiredness, weak muscles, low mood, and slow onset over years. Random testosterone testing in erectile dysfunction wastes money and creates false worry.
·Sildenafil opens blood vessels temporarily, but if erectile dysfunction came from high blood pressure, smoking, or diabetes, the upstream break is still there. He needs to fix his blood pressure, stop smoking, exercise, lose weight, and control blood sugar — or erectile dysfunction will come back and his heart will stay at risk.

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