Helping Men with Erectile Dysfunction After Prostate Surgery

Inclusion Criteria: * As per medical record, early stage prostate cancer (Pathologic Stage 1/2 with Gleason score \</=8; or Pathologic Stage 3 with Gleason score =/\< 7) * As per medical record, radical prostatectomy (RP) conducted either at MSKCC or at another institution * As per medical record, ≤ 9 months post-RP * As per medical record, moderate erectile functioning pre-surgery (i.e., 15 or greater on the IIEF Erectile Function Domain (EFD) score, or graded their erections as a 1 or 2 on the standard 5 point Urology Erectile Function scale, or have a score of 6 or greater on the 1-10 pre-surgery erectile function scale on the SMRP assessment or have a total score of 15 or greater on items 2-7 on the Prostrate Quality of Life Survey: Sexual Domain) * As per self report or as per medical record starting penile injections as part of the erectile rehabilitation program at MSKCC * In the judgment of the consenting professional able to communicate, comprehend, and complete questionnaires in English Exclusion Criteria: * Both cavernous nerves fully resected as per surgery report (nerve sparing score of 8 in MSKCC surgeon note), or documented in the progress note that the nerves were fully resected. * Currently on or has a history of being an Androgen Deprivation Therapy (ADT) * Has any indication of Prostate-Specific Antigen (PSA) * As per self report, specific injection phobia * In the judgment of the consenting professional is unable to provide informed consent and complete study sessions and assessment. * As per self report or as documented in the medical record, current untreated (e.g. no medication no therapy) major psychiatric disorder (schizophrenia, major depression). Patients diagnosed with a major psychiatric disorder will be reviewed by the study PI to determine eligibility prior to consent.