If you notice a change in your urinary patterns, such as a shift in the number of times you need to pass urine each day, or if you have trouble starting to control the flow of urine, consult this PDF.
CAUTION!
Not being able to urinate
You can have a blocked urethra if you notice that you have the urge to urinate but are unable to do so. To avoid renal and bladder damage, this needs urgent medical intervention. Try taking a warm bath to help you pass some urine while you wait for medical assistance.
Unexpected loss of bladder control
If you have had weakness in your legs, sudden inability to control urine may be a symptom of damage to the spinal cord or nervous system.
Get medical care right away!