There are several causes of frequent urination at night in the elderly: 1. It is possible that there is a urinary infection. It is possible to have a urinary infection that not only causes frequent urination, but also urgent urination and poor urination, and sometimes pain in the urethra, and the color of the urine is somewhat yellow and looks especially cloudy. 2. It is possible to have an inflammation of the urethra. The UTI is caused by not paying attention to personal hygiene, and chronic inflammation long-term stimulation is also very related, taking three gold tablets can be effective treatment, during the treatment should pay attention to a light diet, do not eat too spicy and greasy food. In addition to the above two conditions, abnormal kidney function is not excluded. Therefore, a variety of diseases can cause frequent urination, you should promptly go to the urology department for examination to determine the condition to do the appropriate treatment.