Viagra (sildenafil) works by increasing blood flow to the penis, which helps men with erectile dysfunction (ED) achieve and maintain an erection suitable for sexual activity. The presence or absence of a prostate gland does not directly affect the mechanism of action of Viagra.
The prostate gland plays a role in male sexual function by producing fluid that mixes with sperm to form semen. However, removal of the prostate gland (prostatectomy), such as in cases of prostate cancer treatment, does not necessarily eliminate the ability to have erections. The nerves and blood vessels involved in erectile function can still respond to medications like Viagra.
That said, the effectiveness of Viagra can vary depending on individual factors such as overall health, nerve function, and the specific reasons for erectile dysfunction. In some cases, men who have undergone prostate surgery may experience temporary or permanent changes in erectile function due to damage to nerves or blood vessels involved in the erection process.
If you have had prostate surgery or have concerns about erectile dysfunction related to prostate issues, it's important to discuss these with your healthcare provider. They can evaluate your situation, recommend appropriate treatments, and provide guidance on how to manage any sexual health concerns effectively.