Women are prone to urinary infections because they have shorter urethras than men, which reduces the distance bacteria must travel to enter the bladder, explains MayoClinic. Other factors such as sexual activity, birth control and menopause may increase the likelihood of a woman experiencing a urinary infection.
Women who are sexually active have more urinary infections than women who are not sexually active. Certain birth control methods, including diaphragms and spermicidal agents, may also increase the occurrence of urinary infections in women, states MayoClinic. Once menopause occurs, the frequency of urinary infections increases because estrogen levels decrease, causing changes in the urinary tract.