Can a decrease in immunity trigger a urinary tract infection?
Generally speaking, a decline in resistance may trigger urinary tract infections. The specific analysis is as follows:

The human immune system plays an important role in defending against pathogens such as bacteria and viruses. Factors contributing to decreased resistance may include various elements, such as chronic diseases, malnutrition, and excessive stress. When immunity decreases, the body's ability to resist external pathogens weakens, thereby increasing the risk of urinary tract infections. At this time, bacteria around the urinary system, such as Escherichia coli, are more likely to invade the urethra and move upward, causing urinary tract infections. Under normal circumstances, defense mechanisms of the urinary system, such as the urethral mucosa, can prevent bacterial invasion; however, when resistance is low, the function of these defense mechanisms may also be affected.
To prevent urinary tract infections, in addition to enhancing immunity, attention should also be paid to personal hygiene, avoiding holding urine, developing the habit of urinating promptly, maintaining hygiene during sexual activity, and drinking plenty of water to promote urination and flush the urinary tract.