<human>: the tip of my penis has a slight fishy odour, i have recently had a vasectomy 3 months ago, I am begining to suffer from erectile disfunction. I have moderate pain in my testicles and groin area and sometimes feel like I need to urinate again after I have been to the loo. Could I have an infection?
<bot>: Hi and welcome to Chat Doctor. Thank you for your query. I understand your concerns and I will try to help you as much as I can. Erection problems can have many causes. These include:Physical problems, such as injury to nerves or loss oxblood supply to the penis. Other health problems, such as diabetes, high blood pressure, anxiety, and depression. Side effects of certain medicines. Stress.  Chat Doctor.  The exam, lab tests, and sometimes mental health tests can help find out the cause of the problem. Treatment is based on cause and include avoiding tobacco and 