Diagnosed with Cancer? Your two greatest challenges are understanding cancer and understanding possible side effects from chemo and radiation. Knowledge is Power!
Learn about conventional, complementary, and integrative therapies.
Dealing with treatment side effects? Learn about evidence-based therapies to alleviate your symptoms.
Click the orange button to the right to learn more.
Radiation-induced Erectile Dysfuncton
Radiation-induced Erectile Dysfunction can occur at any time a cancer patient undergoes radiation to the pelvis. Because PeopleBeatingCancer focuses primarily on evidence-based non-conventional therapies, the list below does not include any therapies that the FDA has approved.
I am a long-term survivor of an incurable cancer called multiple myeloma. I underwent an autologous stem cell transplant in late 1995 that reduced my free testosterone. I underwent therapy to increase my testosterone. Don’t be surprised if your oncologist doesn’t talk about evidence-based therapies for radiation-induced erectile dysfunction.
Living With and Beyond Cancer: Treating Erectile Disfunction
Non-Conventional / Integrative Therapies for Radiation-Induced Erectile Dysfunction
RiED is primarily caused by:
• Endothelial injury
• Microvascular damage
• Cavernosal fibrosis
• Oxidative stress
• Neurovascular bundle injury
• Reduced nitric oxide signaling
Integrative therapies mainly target those mechanisms.
1. Aerobic and Resistance Exercise
Evidence Strength: Moderate–Strong
Mechanisms
Exercise:
• Improves endothelial nitric oxide production
• Enhances penile vascular blood flow
• Reduces inflammation and oxidative stress
• Improves testosterone and metabolic health
Research
Multiple studies in prostate cancer survivors show:
• Improved erectile function scores
• Better response to PDE5 inhibitors
• Improved vascular function after radiation or androgen deprivation
Exercise is one of the most consistently supported integrative therapies for cancer-related sexual dysfunction.
Practical Protocol
-
150–300 minutes/week moderate aerobic exercise
-
2–3 weekly resistance sessions
-
Interval training may provide additional vascular benefit
2. Pelvic Floor Muscle Therapy
Evidence Strength: Moderate
Mechanisms
Pelvic floor training:
• Improves venous occlusion necessary for erections
• Enhances neuromuscular erectile control
• Improves urinary function which correlates with sexual outcomes
Evidence
Randomized studies in prostate cancer populations demonstrate:
• Improved erectile rigidity
• Improved sexual confidence and satisfaction
Often synergistic with other therapies.
3. Low-Intensity Extracorporeal Shockwave Therapy (Li-ESWT)
Evidence Strength: Moderate (emerging but promising)
Mechanisms
Shockwave therapy promotes:
• Angiogenesis
• Stem-cell recruitment
• Nerve regeneration
• Improved penile endothelial function
Evidence
Studies show improved erectile function in:
• Vasculogenic ED
• Post-prostate cancer treatment ED (including radiation)
Some patients regain responsiveness to oral ED medications.
4. Acupuncture
Evidence Strength: Limited–Moderate
Mechanisms
Acupuncture may:
• Improve autonomic nerve signaling
• Increase nitric oxide synthase activity
• Reduce pelvic inflammation
• Improve psychogenic components of sexual dysfunction
Evidence
Small clinical trials show:
• Improved erectile function in men with cancer-related ED
• Improvement in treatment-related neuropathy and pelvic pain
Evidence remains preliminary but biologically plausible.
5. Mind-Body Therapies
Evidence Strength: Moderate (supportive rather than primary)
Includes:
• Yoga
• Meditation
• Cognitive behavioral therapy
• Stress-reduction programs
Mechanisms
They may improve:
• Sympathetic nervous system balance
• Sexual performance anxiety
• Fatigue and mood disturbances
• Hormonal and vascular regulation
Evidence
Studies in prostate radiation populations show:
• Improved sexual function preservation
• Reduced treatment-related fatigue
• Improved quality of life and intimacy outcomes
6. Nutritional / Nutraceutical Therapies
A. L-Citrulline and L-Arginine
Evidence Strength: Moderate
Mechanism
Precursors to nitric oxide production, supporting penile blood flow.
Evidence
Studies show improved erectile function scores in mild-to-moderate ED and improved PDE5 inhibitor response.
B. Omega-3 Fatty Acids
Evidence Strength: Moderate (indirect but supportive)
Mechanisms
• Anti-inflammatory
• Improves endothelial function
• Reduces radiation-induced vascular injury
Animal radiation studies demonstrate reduced endothelial damage.
C. Antioxidant Polyphenols
Examples:
• Resveratrol
• Green tea catechins
• Cocoa flavanols
• Curcumin
Mechanisms
These compounds:
• Reduce radiation-induced oxidative stress
• Limit fibrosis development
• Improve nitric oxide signaling
Evidence
Most evidence comes from:
• Preclinical radiation injury models
• Human vascular dysfunction studies
Curcumin in particular shows antifibrotic activity in radiation-injury models.
D. Coenzyme Q10
Evidence Strength: Limited–Moderate
Mechanisms:
• Improves mitochondrial energy production
• Enhances endothelial function
• Reduces oxidative stress
Some small ED studies show improvement in erectile performance.
E. Vitamin D Optimization
Evidence Strength: Moderate (associative but consistent)
Low vitamin D is associated with:
• Endothelial dysfunction
• Increased ED risk
• Poor vascular repair
Correction may support vascular recovery.
7. Hyperbaric Oxygen Therapy (HBOT)
Evidence Strength: Moderate
Mechanisms
HBOT:
• Improves tissue oxygenation
• Stimulates angiogenesis
• Promotes healing of radiation-damaged tissues
• Reduces fibrosis
Evidence
HBOT is well established for pelvic radiation injury and has shown improvement in:
• Radiation cystitis
• Radiation proctitis
• Some sexual function outcomes
8. Anti-Fibrotic Natural Agents
A. Pentoxifylline + Vitamin E
(Bridges conventional and integrative medicine)
Mechanism
• Improves microcirculation
• Reduces fibrosis
• Improves endothelial function
Evidence
Widely studied in radiation-induced fibrosis and soft tissue injury.
Often used clinically in radiation late-effect protocols.
B. Melatonin
Evidence Strength: Emerging
Mechanisms:
• Potent antioxidant
• Radioprotective
• Neuroprotective
• Anti-fibrotic
Animal radiation models show protective vascular and neural effects.
9. Lifestyle-Based Sexual Rehabilitation
Evidence consistently shows improved outcomes with:
• Smoking cessation
• Weight optimization
• Alcohol moderation
• Sleep optimization
These factors strongly influence erectile recovery after pelvic radiation.
Integrative Therapy Summary Table
| Therapy | Mechanism | Evidence Level |
|---|---|---|
| Exercise | Endothelial repair, NO production | Strong |
| Pelvic floor therapy | Venous occlusion, neuromuscular | Moderate |
| Shockwave therapy | Angiogenesis, nerve regeneration | Moderate emerging |
| Acupuncture | Neurovascular modulation | Limited-Moderate |
| Yoga / Mind-body | Autonomic and psychological | Moderate |
| L-arginine / citrulline | Nitric oxide support | Moderate |
| Polyphenols / curcumin | Antioxidant, anti-fibrotic | Moderate preclinical |
| Omega-3 fatty acids | Anti-inflammatory vascular protection | Moderate |
| HBOT | Angiogenesis, oxygenation | Moderate |
| Pentoxifylline + Vitamin E | Anti-fibrotic | Moderate-Strong |
| Melatonin | Radioprotection | Emerging |
Are you a cancer survivor experiencing radiation-induced erectile dysfunction? Scroll down the page, post a question or comment, and I will reply to you ASAP.
Hang in there,
David Emerson
- Cancer Survivor
- Cancer Coach
- Director PeopleBeatingCancer
How Cancer Can Affect Erections
Certain kinds of cancer and cancer treatment can affect your ability to have an erection. This is called erectile dysfunction (ED). It can include problems getting an erection or keeping one long enough to have sex with penetration.
Learn more about how cancer and its treatment can affect erections, and the different options for managing erectile dysfunction…
Why does cancer treatment sometimes cause erectile dysfunction?
There are two main ways cancer treatment can affect your ability to have an erection.
- Damage to nerves and blood vessels: Certain nerves and blood vessels that go to your sexual organs must work correctly for you to have an erection. These nerves and blood vessels are most likely to be damaged during surgery or radiation treatment to organs in your pelvis, such as your prostate, penis, bladder, colon, or rectum.
- Decreased testosterone: Other types of cancer treatment can decrease your testosterone levels. This includes hormone therapy, certain types of chemotherapy, targeted therapy, immunotherapy, and stem cell transplant. You need enough testosterone to get and keep an erection.
Radiation-induced Erectile Dysfunction Radiation-induced Erectile Dysfunction