Hi and welcome to Healthcaremagic. Thank you for your query. I understand your concerns and I will try to help you as much as I can. Yes, erectile disorders are common after orostate surgery and this may not be easy to treat. ALso, other causes may be present. These include:Physical problems, such as injury to nerves or loss ofblood supply to the penis . Other health problems, such as diabetes, high blood pressure, anxiety, anddepression.Side effects of certain medicines. Stress. Drinking too much alcohol or smoking. The exam, lab tests, and sometimes mental health tests can help find out the cause of the problem. Tretament is based on cause and include avoiding tobacco and drugs and limiting alcohol. Also, talking about the issue with your partner, doing sensual exercises, and getting counseling may be beneficial. Finding and then stopping medicines that may be causing the problem. In some cases you can take a different medicine that doesn t cause erection problems. Taking prescription medicine that can help you get erections. These include pills such as sildenafil (for example, Viagra), tadalafil (for example, Cialis). In most cases this is sufficient for treatment but you should just be patient and do necessary tests. I hope I have answered you query. If you have any further questions you can contact us in every time. Kindly regards. Wish you a good health.