Inclusion Criteria:  Prostate cancer only happens in male patients Patients who are currently receiving at least one dose of LHRH agonist or antagonist, as androgen deprivation therapy Patients who are willing to consent and participate in this study  Exclusion Criteria:  Patients who received bilateral orchidectomy as androgen deprivation therapy Patients who, in the opinion of investigators, are not able to comprehend about the study questions