It is possible that you may have endured pelvic nerve injury, either as a result of the colon cancer, or due to effect of the radiotherapy. Such permanent damage can cause erectile dysfunction.
In case, you are not able to have early morning erections, then it will be a sign of confirmed erectile dysfunction.
In such a case, you will need to consult a urologist, for proper evaluation. In case medications like Viagra or Cialis are not helping, surgical options including penile implants might be necessary to have a good sexual life.
"Ask a Doctor" questions are answered by certified physicians and other medical professionals.
For more information about experts participating in the "Ask a Doctor" Network, please visit our
medical experts page.
You may also visit our Erectile Dysfunction , for moderated patient to patient support and information.
The information provided on eHealth Forum is designed to improve, not replace, the relationship between a patient and his/her own physician.
Personal consultation(s) with a qualified medical professional is the proper means for diagnosing any medical condition.