Women are more susceptible to urinary tract infections than men, mainly because of the structural characteristics of the urethra. However, if they suffer from diabetes, women become even more at risk for urinary tract infections, with a prevalence rate often above 20%. This is because the increase in blood sugar in diabetes causes a decrease in the phagocytosis of white blood cells and reduces the body’s resistance to bacterial infections; on the other hand, the increase in blood sugar concentration is conducive to the growth and reproduction of bacteria, especially in the perineum of women. The combined effect of these two factors is bound to significantly increase the rate of urinary tract infections in diabetic women, so women with diabetes need to be highly alert to the occurrence and development of urinary tract infections.