I had an ultrasound done 2 days ago. they said I emptied my bladder only about 20%. I new I was having (post) residual. I was wondering what will be some of the option they will give me to correct this? Also everything I have read has to do with eitherbeing obese, elderly, or having children. I am 27 yrs old, I am at a good weight and I have had no children or never been pregnant. thank you