Nocturnal urination 3-4 times is certainly not normal, this situation is the clinical so-called nocturnal urination increased, generally nocturnal urination is 0-1 times, occasionally increased is 2 times. It is recommended that you should do residual urine examination of both kidneys, ureter and bladder, and male patients should do prostate ultrasound to observe whether the prostate is enlarged, and by doing ultrasound you can find out whether there is obstruction in the urinary tract. The increase in residual urine indicates that urination is not smooth and there is urinary retention, this situation is recommended to take oral medication, medication recommended alpha-blockers, the most common ones are Haloxin, Tamsulosin, Alfuzosin, Terazosin, Doxazosin, etc. Take 1 tablet orally every night before bed, for increased urination and nocturia can be significantly improved.