### Patient: Doctor, I have been experiencing some involuntary urination, focal weakness, excessive urination at night, and some retention of urine. Do you have any idea what could be causing this?
### Doctor: It sounds like you may have overflow incontinence. This occurs when your bladder is not able to fully empty itself, causing urine to constantly leak out. It can also cause excessive urination at night and retention of urine. I will need to do some further tests to determine the underlying cause and to determine the best course of treatment.