Finasteride tablets can rebound after discontinuation of the drug. The main mechanism of action of finasteride is to prevent testosterone from changing into active dihydrotestosterone in the prostate gland, thus reducing the size of the prostate gland and improving the patient’s urinary symptoms. The testosterone will change to active dihydrotestosterone after stopping the drug, the prostate will start to grow again, the volume will become larger, the resistance of the posterior urethra will increase, there will be poor urination, urination effort, prolonged urination time. If it works after taking finasteride tablets, you should continue treatment, you can take the medicine every other day as appropriate, it can continuously improve the symptoms of urinary difficulties, it is recommended to take the medicine for life.