Abstract: A method and device is provided for high power BPH laser treatments in a doctor's office or clinic setting wherein only local anesthetics are employed, making the treatments administrable in a doctor's office or a clinic, and allowing the patient to remain conscious throughout the procedure so that the doctor can interact with the patient while administering the treatment. The BPH treatments can be administered in a single short duration, i.e., each session lasting for not more than about 45 minutes and having a lasing time within the range of about 10 minutes to about 20 minutes, thus limiting the amount of discomfort and anxiety a patient might experience. The relatively high power treatment coupled with the relatively short treatment time allows doctors to assess the results of the treatment session within minutes after completing the procedure.