Trying to go to the toilet and not being able to pass urine may be acute urinary retention. First of all, physical examination should be done to observe whether there is turbidity in the bladder area, if there is turbidity it is suspected that there is urinary retention. Ultrasound should be done to observe how much urine is not urinated out, if the amount of residual urine is small, warm water sitz bath is recommended and medication can be taken. Medications are recommended such as Tamsulosin, Tamsulosin, Alfuzosin, etc. Medications can improve urination in men. If there is a lot of residual urine, greater than 100ml or more, it is recommended to keep a urinary catheter to drain the urine out. There are many causes of urinary retention in males or females, including neurogenic bladder, or nerve suppression due to anesthesia. Men may have an enlarged prostate or bladder stones. Women may have neurogenic bladder, urethral stricture, and bladder neck elevation.