How an Erection Works: What Every Man Should Know

[madman]

Welcome to UroPatient, hosted by Vic Senese, where complex urology topics are explained in a clear, respectful, and easy-to-understand way. In this episode, we answer a common but often misunderstood question: How does an erection work?

An erection is the result of a carefully coordinated interaction between the brain, nerves, blood vessels, hormones, and penile tissue. When any part of that system is disrupted—by aging, stress, medical conditions, medications, or lifestyle factors—erectile dysfunction can occur.




In this video, you’ll learn:

* How the brain and nerves trigger an erection

* The role of blood flow and nitric oxide

* What happens inside the penis during an erection

* Why erections go away after ejaculation

* Common reasons erections don’t work as expected

* How heart health, diabetes, stress, and medications play a role

* Why erectile problems can be an early warning sign of other health issues

 

[madman]

Thread 'ANATOMY OF THE PENIS'

Sep 4, 2023

The Male Penis: Anatomy and Function​

The penis is a male external genital organ that serves both urinary and reproductive functions. It can be divided into three main parts: the root, body, and glans.

Root​

The root is the fixed part of the penis located in the superficial perineal pouch of the pelvic floor. It contains:

• Two crura
• Bulb of the penis
• Erectile tissues
• Ischiocavernosus and bulbospongiosus muscles

The bulbospongiosus muscles contract to empty the spongy urethra of residual urine or semen and during orgasm and ejaculation. The...

• madman
• erections; penile anatomy; sexual health
• Replies: 16
• Forum: Health & Wellness

 

[madman]

Thread 'Erectile dysfunction: A vital sign for cardiovascular health'

Aug 15, 2025

* The P4 panel recommendations confirm that ED is a strong, independent predictor of cardiac events, even when traditional risk factors such as cholesterol, diabetes and blood pressure are controlled for. In short, ED is the body's "check engine light" for heart disease.


* Phosphodiesterase-5 (PDE5) inhibitors — such as sildenafil and tadalafil — remain first line therapy for ED. The P4 recommendations, however, suggest that these medications may offer more than symptom relief. Multiple large studies show that men taking PDE5 inhibitors have lower rates of heart...

• madman
• ed; cvd; princeton4; pde5i
• Replies: 6
• Forum: Health & Wellness