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Changes in the urinary system during pregnancy. The body goes through many changes during pregnancy. Significant anatomical changes occur in the urinary system. Under the influence of the hormone progesterone, the kidneys and the ureters dilate. This can lead to a slow down in the flow of urine through the ureters and therefore an increased risk of urinary infection in pregnancy.
Difficulties with urination can happen as you get older, but when you have diabetes, bladder problems, and urinary tract infections can start earlier in life and occur more often. 1  This is because diabetes can cause damage to the nerves that are responsible for urinary system health and function. In general, women are more likely to experience leakage or urinary incontinence than men because of different anatomical structures and bodily changes from pregnancy and delivery.