Erection problems are one of the most common sexual health issues men face, and there are usually identifiable, treatable reasons behind them. Some degree of erectile difficulty affects about 22% of men at age 40 and climbs to nearly 50% by age 70. If your husband is struggling to get or stay erect, the cause is almost always physical, psychological, or a combination of both.
Understanding what’s going on can help you both move forward without blame or shame. Here’s what could be happening and what actually helps.
Blood Flow Is the Most Common Culprit
Erections depend on blood flowing into the penis and staying there long enough for sex. The most frequent physical cause of erectile dysfunction is atherosclerosis, the same process that clogs arteries in the heart. Cholesterol builds up inside blood vessel walls, forming plaques that narrow the vessels and prevent them from opening properly when aroused. Because the arteries in the penis are smaller than those supplying the heart, they tend to show damage first.
This is why erectile dysfunction is sometimes called an early warning sign for cardiovascular disease. Research published by the American Heart Association found that ED typically appears three to five years before a heart attack or stroke. That timeline is actually a window of opportunity. If your husband is otherwise healthy and hasn’t had a heart checkup recently, erection problems can be a reason to get one. High blood pressure, high cholesterol, and being overweight all contribute to this kind of vascular damage.
Diabetes, Hormones, and Nerve Damage
Chronically high blood sugar damages both nerves and blood vessels over time, which is why men with diabetes are significantly more likely to develop erection problems. The nerve damage reduces sensation and the signals that trigger blood flow, while the vascular damage limits the blood supply itself. If your husband has diabetes or prediabetes, tighter blood sugar management can slow or partially reverse this process.
Low testosterone is another physical factor, though it’s less common than many people assume. Testosterone drives libido more than it controls the mechanical process of getting erect. A man with low testosterone may notice reduced desire for sex first, with weaker erections following. A simple blood test can check his levels.
Medications That Interfere With Erections
Dozens of common prescription drugs can cause or worsen erection problems. If your husband started a new medication in the months before this began, that’s worth investigating. The most frequent offenders fall into a few categories:
- Blood pressure medications: Thiazide diuretics (water pills) are the most common cause of drug-related ED. Beta-blockers are the next most likely class to cause problems.
- Antidepressants and anti-anxiety drugs: SSRIs and many older antidepressants frequently affect sexual function, including the ability to get erect and reach orgasm.
- Antihistamines: Some allergy and heartburn medications can contribute, especially with regular use.
- Prostate medications: Drugs prescribed for enlarged prostate or hair loss that block certain hormones can reduce erectile function.
He should never stop a prescribed medication on his own, but a doctor can often switch to an alternative that’s less likely to cause sexual side effects.
Stress, Anxiety, and the Mental Side
Erections require the nervous system to relax, which is the opposite of what happens during stress or anxiety. Performance anxiety is especially common: one failed erection creates worry about the next attempt, which makes the next failure more likely. This cycle can start from a single bad experience and snowball quickly.
There’s a simple clue that can help distinguish physical from psychological causes. Men with normal physical function still get erections during sleep, typically three to five times per night. If your husband wakes up with erections in the morning but struggles during sex, the issue is more likely psychological. If morning erections have also disappeared, a physical cause is more probable. Many men have a mix of both.
Depression, relationship conflict, work stress, grief, and even poor sleep can all suppress arousal. These causes are just as real as physical ones and respond well to treatment, often through therapy or couples counseling.
Lifestyle Changes That Make a Real Difference
Weight loss, exercise, and diet improvements can meaningfully restore erectile function, sometimes without any medication at all. In a clinical trial that followed over 100 men through two years of lifestyle changes focused on weight loss, better diet, and increased physical activity, the number of men with normal erectile function jumped from 34% to 56%. The comparison group, which didn’t make those changes, stayed nearly flat at 36% to 38%.
The specific changes that matter most overlap with heart health recommendations: regular aerobic exercise (walking, cycling, swimming), losing excess weight, eating more vegetables and healthy fats, limiting processed food, and quitting smoking. Smoking directly damages blood vessel walls and accelerates the same narrowing process that causes both ED and heart disease. Even moderate alcohol use can contribute, and heavy drinking is a well-established cause.
How Treatment Works
Oral medications for ED work by increasing blood flow to the penis during arousal. They don’t create spontaneous erections on their own; stimulation is still required. In clinical trials, these medications resulted in successful intercourse about 61% to 75% of the time, compared with roughly 20% to 32% with a placebo. That’s a substantial improvement, but it also means 25% to 35% of men don’t respond well to these drugs alone.
For men who don’t respond to oral medication, other options exist, including vacuum devices, injections, and in some cases surgical implants. A urologist can walk through the options based on what’s causing the problem. Treatment works best when the underlying cause, whether it’s cardiovascular risk, low testosterone, medication side effects, or anxiety, is addressed alongside it.
How to Bring It Up Without Adding Pressure
Your husband likely already feels embarrassed, frustrated, or ashamed, even if he hasn’t said so. How you approach the conversation matters a lot. James Hotaling, a urologist at the University of Utah, recommends starting by putting yourself in your partner’s shoes and acknowledging his struggle before jumping to solutions.
Choose a time and place that feels private but not charged. Talking about it during or right after a failed sexual encounter tends to make things worse. A quiet moment outside the bedroom, where you can frame it as a health concern you want to face together, takes some of the sting out of the topic. Reminding him that this is common and treatable can counter the isolation many men feel.
If he’s open to seeing a doctor, going to the appointment together helps. You’ll both hear the same information, can ask questions, and leave with a shared understanding of what comes next. ED is a couples issue, not just his problem, and treating it that way tends to produce better outcomes for both the relationship and the medical side.