Erectile dysfunction
Persistent difficulty getting or keeping an erection. Often the earliest visible sign of blood-vessel disease — the same process that affects the heart — so it is worth taking seriously and screening for diabetes, cholesterol and, when relevant, low testosterone.
What it means
An erection depends on healthy blood vessels, nerves, hormones and mood all working together, so erectile dysfunction is usually multifactorial. The most important insight is vascular: because the penile arteries are small, they often show narrowing before the coronary arteries, making new ED a recognised early warning sign of cardiovascular disease and a prompt to check the same risk factors — blood pressure, glucose, cholesterol, smoking. Other contributors include diabetes (both vascular and nerve damage), low testosterone, high prolactin, thyroid disease, neurological conditions, pelvic surgery, and, very commonly, medications (some blood-pressure drugs, antidepressants) and psychological factors such as stress, anxiety and depression. A lab screen catches the treatable hormonal and metabolic causes and, importantly, the cardiovascular risk that ED may be signalling.
Common causes
- Vascular disease / cardiovascular risk factors — the key association; ED often precedes heart disease.
- Diabetes — very common cause, through both blood-vessel and nerve damage.
- Psychological — stress, anxiety, depression, relationship factors.
- Medications — some antihypertensives, antidepressants (SSRIs), finasteride.
- Low testosterone — usually with reduced libido and fatigue.
- High prolactin / thyroid disease.
- Smoking, excess alcohol, obesity, physical inactivity.
- Neurological or post-surgical — nerve injury, pelvic or prostate surgery.
Lab work-up approach
Because ED can be the first sign of vascular disease, the screen is as much cardiometabolic as hormonal: fasting glucose/HbA1c (diabetes), a lipid panel, and blood pressure. Add a morning total testosterone with SHBG, and — if testosterone is low or libido is reduced — prolactin and TSH to find pituitary or thyroid causes. A medication review is essential and often the key. Mediora.AI surfaces the glucose, lipid and testosterone pattern from your results so both the treatable hormonal causes and the cardiovascular risk are visible; the assessment, including the psychological dimension, belongs with your doctor.
Tests Mediora.AI can interpret
Related conditions
Panels to consider
When to see a doctor
New, persistent erectile dysfunction is worth seeing a doctor about — not only because it is treatable, but because it can be an early flag for heart and vascular disease that is better caught now. Bring it up especially if you also have chest pain on exertion, diabetes, high blood pressure, or a strong family history of heart disease. ED with low libido and fatigue suggests checking testosterone. Review any medication that began around the time symptoms started, without stopping it yourself. Mediora.AI helps screen the metabolic and hormonal contributors; the evaluation, and the cardiovascular risk it may reveal, are handled with your doctor.