Frequent urination, pain, urgency. What's going on?

This condition is considered to be related to urinary tract infection, such as urethritis, cystitis, nephritis, etc., requiring anti-infection treatment, and may also be related to urinary system stones, such as urethral stones, ureteral stones, male prostatitis, prostatic hyperplasia, etc., which may also lead to frequent urination, pain, urgency, and incomplete urination.