Within the last few years numerous support groups have emerged on the Internet, presenting new opportunities for patients to communicate with health care professionals and other patients. The present study examines discourse within online cancer support groups, increasing our understanding of sex differences in cybersupport. Two reproductive cancer groups were chosen for this investigation, the Ovarian Problems Mailing List (OPML) and the Prostate Problems Mailing List (PPML), making sex of the patient recognizable. Phenomenological thematic analysis was employed to describe and interpret messages sent and received. Analyses for the two groups were compared. Generally, it was found that the two online listservs provided opportunities for cancer patients to receive support, within western society's accepted forms of gendered communication.