Why is it necessary to wait when urinating?

Patient's question:

Detailed medical condition and purpose of consultation: Need to wait for urination
Duration and persistence of the current illness: 60 days
Current general condition:
Medical history: None
Previous diagnoses and treatment history and outcomes: None
Auxiliary tests: Ultrasound normal, urinalysis normal
Others:

Doctor's answer:

The issue you mentioned with holding urine should be checked with a bladder ultrasound to see if there are bladder stones or other abnormalities. If the bladder is not problematic, it is likely an issue with your habit.