It can cause you to incompletely empty your bladder, which can cause a urinary tract infection.
If necessary, your doctor can provide biofeedback training.
The symptoms of and its severity can be decreased with pelvic floor exercises.
The perineal muscles are involved in ejaculation when they are involuntarily contracted.
These muscles play important roles in bladder and bowel control and during erection and ejaculation.
You could also do it a bit quickly at about 5 minutes if you are just getting started.