In type 2 diabetes, you have excessive levels of glucose in your blood. Your kidneys clean the blood, and waste products are released into your bladder in urine, where they can be excreted by the body. When your blood sugar is high, your kidneys have to work overtime to get rid of as much glucose as possible. Therefore, you will find that you need to urinate frequently. In addition, diabetic urine can smell sweet due to the levels of glucose it contains. As you pee more, you will lose more water, so increased urination often comes with increased thirst - another symptom of diabetes.