Why old make urethritis

Urethritis may be caused by decreased immunity, abnormal urethral structure and pathogen resistance, details are as follows: 1, decreased immunity When the patient has decreased immunity, pathogens are more likely to invade the body, resulting in repeated episodes of urethritis. 2, abnormal urethral structure If the patient has urethral stricture, urethral diverticulum and other abnormal urethral structure, it is easy to cause pathogens to stay and reproduce, resulting in repeated episodes of urethritis. 3, pathogen resistance If the patient uses antibiotics for a long time, when the bacteria are resistant to drugs, it can lead to ineffective treatment, resulting in repeated episodes of urethritis.