Rectal cancer treatment can affect male sexual function in various ways, impacting both physical and emotional aspects of intimacy. Understanding these potential effects can help men and their partners prepare for recovery and explore available treatment options. This article explains how rectal cancer treatment may affect sexual function and what support is available to help manage these concerns.
Types of Rectal Cancer Treatment and Their Impact
Different treatment approaches for rectal cancer can affect sexual function in various ways. Surgery, chemotherapy, and radiotherapy each present unique challenges for male sexual health.
Surgery (anterior resection or abdominoperineal resection): May damage nerves that control erection and ejaculation, particularly those near the rectum and prostate
Radiotherapy to the pelvis: Can cause inflammation and scarring of blood vessels and nerves, reducing blood flow to sexual organs
Chemotherapy: May lower testosterone levels and reduce overall energy, affecting libido and sexual performance
Combination treatments: Often increase the likelihood of sexual dysfunction when multiple therapies are used.
Sexual Function After Rectal Cancer Treatment: Physical and Emotional Changes
Rectal cancer treatment can cause a range of physical and emotional changes that affect male sexual health. These effects may be temporary or permanent, depending on the type and extent of treatment.
Common physical changes include:
- Erectile dysfunction: May occur after rectal surgery, with severity depending on the surgical technique and whether nerves can be preserved.
- Dry orgasm (retrograde ejaculation): Semen travels backward into the bladder rather than exiting through the penis.
- Reduced sensation: Nerve damage or scar tissue formation may affect sensation in the genital area.
- Decreased libido: Often linked to hormonal changes, fatigue, or the body’s focus on healing.
Emotional and psychological effects may include:
- Performance anxiety: Worries about sexual performance can reduce confidence and desire.
- Body image concerns: Particularly after surgery that alters bowel function or requires a stoma.
- Depression and stress: The emotional impact of cancer diagnosis and treatment can lower interest in sexual activity.
- Relationship strain: Couples may experience communication difficulties around intimacy and adapting to changes.
Recovery and Management Options
Recovery of sexual function after rectal cancer treatment varies between individuals. A men’s health specialist can provide targeted medical options to support sexual health, including:
Medical treatments: Oral medications such as Sildenafil or Tadalafil, or Shockwave Therapy, may help improve blood flow and support erection quality. Hormone testing and Testosterone Replacement Therapy (TRT) may be considered if low testosterone is contributing to reduced libido or energy.
Specialist referrals: Where appropriate, your men’s health doctor may refer you back to your colorectal surgeon for further support with managing rectal cancer treatment side effects, such as bowel or pelvic floor issues that can also affect sexual health.
When to See a Specialist
You should consult a men’s health specialist if you experience:
Erectile difficulties: Problems achieving or maintaining an erection that affect intimacy.
Premature ejaculation: Difficulty with ejaculatory control that impacts sexual satisfaction.
Low libido: Reduced sexual desire or energy levels, which may be linked to low testosterone.
Ongoing side effects from rectal cancer treatment: If bowel, pelvic, or other post-treatment issues continue to affect your sexual health, your men’s health doctor may coordinate with your colorectal surgeon for further care.
Conclusion
Sexual health concerns are common after rectal cancer treatment, but many can be managed with the right support. A men’s health specialist can assess your symptoms and recommend treatment options such as medications, shockwave therapy, or testosterone optimization to help restore sexual confidence and function.
