Consultant urologist · Last reviewed: October 2026

One disappointing experience can leave some men anxiously watching their performance every time, while others put off seeing a doctor for years. Persistent erectile dysfunction is a health problem that can be assessed and treated, and it often has both physical and psychological causes. The useful starting point is understanding the cause and the options, rather than trying one product after another without knowing what suits your situation.

Why erectile dysfunction happens

It can be linked to diabetes, blood vessel disease, smoking, some medicines, hormonal problems or pelvic surgery, and anxiety and stress can make it worse. Your doctor will ask when the problem started, about morning erections, desire, medicines and long-term conditions, and may request tests such as blood sugar, cholesterol and testosterone depending on the assessment. A review of your heart risk factors may also be needed.

Tablets need to be used correctly

Medicines such as sildenafil and tadalafil help improve the response to sexual stimulation. But timing, food, the dose and how they are taken all affect the result, and a single attempt may not be enough to say they don't work. They must not be taken with nitrate medicines because of the risk of a dangerous drop in blood pressure, and interactions and heart health need to be reviewed before they are prescribed.

If tablets aren't enough

Vacuum devices and injections into the penis (intracavernosal injections) are available, with proper medical training in how to use them. A penile implant may be an option when other treatments aren't suitable or haven't worked, after a detailed discussion. An implant provides rigidity, but it doesn't increase desire by itself, and it doesn't guarantee a larger size or improve every aspect of a relationship.

What about shock wave therapy and PRP?

Low-intensity shock wave therapy may be discussed for selected cases of erectile dysfunction caused by blood vessel problems, with a clear explanation that responses and evidence vary. Platelet-rich plasma (PRP) injections still lack enough evidence to be used as a routine treatment with a guaranteed benefit. Calling a treatment natural or new is not proof that it works.

When you need urgent help

An erection lasting four hours or more after a medicine or an injection needs emergency care.

Beyond emergencies, involving your partner when appropriate can help reduce anxiety and set realistic goals. Successful treatment is a plan that takes your general health and your preferences into account, with follow-up that confirms it is working and safe.

This article is general health education and doesn't replace a consultation with your doctor.