Condition analysis: Frequent urination and urgent urination are usually caused by the following reasons:

1. Infectious diseases: including infections of the bladder, urethra or adjacent organs, such as cystitis, Diseases such as urethritis and prostatitis. These infectious diseases can irritate the bladder or urethral mucosa, causing increased sensitivity of the bladder and causing symptoms of frequent urination and urgency;

2. Urinary system problems Stones: Such as bladder stones, urethral stones or stones at the end of the ureter. Because the stones damage or irritate the urinary tract mucosa, they will cause symptoms of frequent urination and urgency;

3. Tumor lesions: including Tumors of the bladder, urethra, or adjacent organs, such as bladder tumors, urethra tumors, or prostate tumors. There are also lesions in adjacent organs, such as gynecological tumors, colon or rectal tumors. If they compress or irritate the bladder, they can also cause symptoms of frequent urination and urgency;

4. Chemical or other factors Irritation: For example, foreign bodies in the bladder and urethra, intravesical chemotherapy drugs, etc. can also cause symptoms of frequent urination and urgency;

5. Other causes: benign prostatic hyperplasia, bladder tuberculosis, Interstitial cystitis, overactive bladder, etc. can also cause varying degrees of symptoms of frequent urination and urgency.