I agree with Bob. You will not suprise the doctor no matter how you react to the examination, it probably does happen sometimes when guys are nervous, and if you need to have medical advice about a problem in that area, that is what you need. Go to the doctor, don't be scared.
Hi please don't worry about getting erect the Doctors & Nurse's have seen it all before , please don't let that stop you ,
if you got problems down there please get it seen to , take care , let medhelp know the results ,