The main reasons for just urinating and then urinating again are urinary tract infection, overactive bladder and prostate hyperplasia. 1. Urethral infection: if the urethra is bacterial or viral infection, can cause urethral mucosa edema, congestion, just after urination, has made the urethra has been stimulated, and then make a hard to make the urethra is stimulated once again, it will be frequent urination. 2. Overactive bladder syndrome: If you suffer from overactive bladder syndrome, just after urination, a strong force will promote abnormal contraction of the urethral muscle, will produce urination again. 3. Prostatic hyperplasia: prostatic hyperplasia, that is, hyperplasia of the prostate urethra around the migratory zone, oppression of the prostate in the urethra, so that the resistance to urination increases, a time not finished urinating, can appear just after urinating a strong and then the case of urine. The above phenomenon may also be caused by other factors, it is recommended that patients go to the regular hospital in time to identify the causes, and actively cooperate with the professional doctor’s treatment, and strive for early recovery.