Why is it that I leak urine throughout the day?

Depends. If you leak most often with activities like coughing, laughing or sneezing then you probably have stress incontinence. Leaking with a strong urge on the way to the restroom usually indicates bladder spasms or urge incontinence. Their are other causes of leaking urine. Your doctor can determine the underlying cause and best treatment. You can start the evaluation with your gyn.