September27 , 2023

    Erectile Dysfunction: A Brief Overview


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    Erectile dysfunction (ED) is the failure to develop or sustain an erection that is sufficient enough to engage in sexual activity. It is quite common in men over the age of 40. Roughly, 1 out of 5 men suffers from ED.

    ED is normally nothing to be concerned about, but if it persists, it could be a symptom of a more serious issue. As a result, you should consult with the Best Sexologist in Karachi as soon as possible.

    Physiology of Erection

    It is important to understand the normal mechanism behind an erection to figure out where the abnormality lies when the dysfunction happens. Normally, an erection is caused by an increase in the blood supply of the penis. 

    When a penis is sexually stimulated, its muscles relax allowing the dilatation of blood vessels. This increases the flow of blood through the arteries and that blood accumulates in the penis, resulting in a stiff erect penis.

    Just the opposite, when the blood vessels constrict, the pooled blood can be drained by the veins of the penis which ends the erection.

    Etiology of ED

    The causes of ED are either physical or physiological.

    Physical Factors

    Many health conditions, such as narrowing of the arteries, cardiovascular disease, elevated sugar levels, and smoking, can decrease blood flow to the penis. It could also be a result of dysfunctional signaling from the central nervous system. The penis’ functioning may be impaired by cancer treatments close to the pelvic region or by drugs that are used to address other health concerns.

    Chronic diseases such as diabetes mellitus, Parkinson’s, multiple sclerosis, Peyronie’s disease (scar tissue within the penis), or sleep disorders can also contribute to the occurrence of erectile dysfunction.

    Physiological Factors

    Anxiety, depression, or other mental illnesses, home or work-related stress, conflicts of social, cultural, or religious nature causing stress, or anxiety about sexual performance can potentially cause ED.


    The doctor will inquire about your symptoms and medical history to diagnose ED. They will conduct a thorough physical exam to search for evidence of poor blood flow or nerve injury. They will also look for any abnormalities in your pelvis or perineum that could be causing erectile dysfunction.

    Lab tests can aid in the diagnosis of ED. Complete blood counts, cholesterol levels, liver function tests, and blood sugar levels are some important investigations ordered.


    Fortunately, ED is easily treatable and there are many treatment options that your doctor might suggest. The general treatment starts with improving lifestyle and mental health. The specific treatment for ED depends on various factors. Treatments that are not invasive are frequently tried first. The majority of the most well-known ED therapies are safe and efficacious. 

    • Oral drugs such as sildenafil, vardenafil, tadalafil, and avanafil
    • Hormone Therapy (when testosterone levels are low)
    • Intra-urethral medicine and penile injections
    • Vacuum Erection Devices
    • Penile Implants

    Treatments may consist of a combination of drugs, devices, or therapy. Your specific treatment strategy will be determined by your doctor and will be based on the cause of your ED. For the best treatment, visit to find the best doctors in town.