Debunking 5 Common Myths About Vasectomies

A vasectomy is a minor surgical procedure that stops sperm from mixing with semen, providing a safe and reliable form of long-term contraception. In the United States, more than 500,000 vasectomies are performed each year.

But despite how simple and effective they are, myths and misconceptions surrounding the procedure make some men hesitant to consider one.

At Pasadena Urological Medical Group, we believe in educating our patients so they can make informed decisions about their care. Keep reading as our team debunks five common vasectomy myths.

Myth #1: Vasectomies are painful

Given the location, it’s only natural to feel some concern about the potential pain involved. While you remain awake for the procedure, we use local anesthesia to thoroughly numb the area and keep you comfortable.

You may feel a slight pinch when we inject the anesthetic, along with mild pressure or a tugging sensation during surgery, but you shouldn’t experience significant pain. Most vasectomies take less than 30 minutes to complete.

Afterward, some mild soreness, swelling, and bruising are normal and typically clear up within a few days. Rest, ice, and over-the-counter pain relievers can help you manage any post-op discomfort.

Myth #2: You won’t ejaculate normally anymore

During a vasectomy, we divide and seal the ends of the vas deferens — the tubes that carry sperm from your testicles to the urethra during ejaculation. This prevents sperm from combining with the other fluids that make up semen. 

However, the seminal vesicles and prostate gland continue to produce fluid as normal. Because sperm make up only 1-5% of the total volume, there should be no noticeable change in the amount or appearance of your ejaculate after the procedure.

Myth #3: Vasectomies may cause erectile dysfunction or low testosterone

A vasectomy does not affect your ability to achieve an erection, nor does it reduce your sex drive. The nerves and blood vessels involved in arousal and erectile function are located away from the surgical site and remain untouched during the procedure.

Hormone production doesn’t change, either. Your testicles release testosterone directly into the bloodstream, not through the vas deferens, so it continues circulating normally after surgery.

Myth #4: Your risk of prostate cancer increases

The idea that vasectomies increase prostate cancer risk comes from older studies whose findings have since been disproven. More recent research shows that men who have undergone the procedure are no more likely to develop cancer than those who haven’t.

Myth #5: It’s immediately effective 

Vasectomies are over 99% effective at preventing pregnancy, but the results aren’t immediate. Sperm already present beyond the blocked portion of the vas deferens may continue to appear in your semen for a time after surgery.

You should use an alternative form of birth control until a follow-up semen analysis confirms the absence of sperm in your ejaculate. This test typically takes place around 8-12 weeks post-procedure.

If you’re considering a vasectomy, our team is here to answer your questions and walk you through the process. Reach out online or by phone to schedule an appointment with our experts at Pasadena Urological Medical Group in Pasadena, California.