How common is erectile dysfunction?Very common. The Massachusetts Male Aging Study found about 52% of men aged 40-70 have some degree of ED, and prevalence rises with age - from roughly 5-15% in younger men to about 70% in men over 70. Worldwide, hundreds of millions of men are affected. Estimates vary by how ED is defined and measured.
At what age does ED usually start?ED can occur at any age, but prevalence rises steadily with age. It's uncommon-but-real in the 20s and 30s (around 5-10%), becomes more common through the 40s and 50s, and affects roughly half or more of men in their 60s and 70s. Age is the single strongest predictor, mainly because erections depend on vascular health, which declines with age.
Is ED common in young men?More than people assume. General-population estimates put ED at around 5-10% in men under 40, but among men seeking help for new ED, about 1 in 4 (26%) are 40 or younger, and nearly half of those have severe ED. Young-men ED is more often psychological or lifestyle-related, which also makes it very treatable.
What is the most common cause of ED?It depends on age. Across the population, vascular problems (reduced blood flow, tied to diabetes, heart disease, high blood pressure, obesity and smoking) are the leading organic cause. In younger men, psychological causes - especially performance anxiety - dominate. Many men have more than one contributing cause.
How many men with diabetes have ED?A lot - estimates put ED prevalence at about 65.8% in men with diabetes (global umbrella review), with other sources citing 35-75%, versus roughly 26% in the general population. Risk rises with how long a man has had diabetes and how poorly it's controlled, because diabetes damages both blood vessels and nerves.
Is ED a sign of heart disease?It can be an early warning sign. ED prevalence exceeds 90% in men with coronary artery disease and is about 62% after a heart attack, and ED often appears years before cardiac symptoms because the small penile arteries show damage first. New ED is a good reason to have your cardiovascular risk factors checked.
Is erectile dysfunction becoming more common?Probably, especially in younger men - driven partly by rising obesity and diabetes, and partly by greater awareness and help-seeking. It's hard to separate a true increase from better measurement, but the underlying burden appears to be growing. Either way, it remains common and treatable.
Is ED treatable, and how often does treatment work?Yes - ED is treatable for the large majority of men. First-line PDE5 pills (sildenafil, tadalafil) help most men who take them, and a well-established ladder of further options resolves nearly all remaining cases. Many younger men improve by addressing the cause. The main problem isn't treatability - it's that many men never seek help.
Why do ED statistics vary so much?Because studies define ED differently (any difficulty vs severe, persistent ED), measure it with different questionnaires, and study different populations and ages. That's why prevalence estimates range from 3% to over 76%. The robust patterns that hold across studies - common, rises with age, tracks vascular health - are more reliable than any single percentage.