<s>[INST] I have had abdominal pain with a pain right behind my penis for about 2 months. I have problems getting and or keeping an erection also. Sometimes the hen I am having sex, I get the pain and have to stop. In the last 2 weeks I have noticed some blood in my stool sample with the feeling of frequent urination. What do I need to do, and what do you think is the problem.....Thank you! [/INST] Thanks for asking in Chat Doctor forum In short: You may be suffering from Urinary tract infectionExplanation: BY your history it is clear that you are having urinary problem which is causing you pain and also causing erectile dysfunction(due to pain). So, visit a doctor and get yourself examined with investigation for Urinary tract infection.  Your blood in stools may be because of ammonoids/fissure so tell your doctor about this also, and you may go for stool test also.  Good luck </s>