Fournier’s Gangrene is necrotisingfasciitis of the perineum, external genitalia and perianal region. It is a polymicrobial infection of the soft tissues of the above mentioned areas. It is characterised by rapid onset gangrene with “shameful exposure of scrotal contents”. Etiology is unknown in more than half of the cases. Rarely it has been found in association with rectal carcinoma, sometimes chemotherapy induced and at times in form of cryptic, undiagnosed cases.

We hereby report a case presenting to us as typical fournier’s gangrene which on evaluation was found to have an undiagnosed rectal growth, later labelled as rectal carcinoma on tissue sampling studies.