Peyronie's disease (PD) is an inflammatory condition characterized by the formation of fibrous, noncompliant nodules in the tunica albuginea which can impede tunical expansion during penile erection, leading to deformity and bending. While the cause of this disease is thought to be due to microvascular trauma and abnormal wound healing, other hypotheses include genetic predisposition. In this review the pathophysiology of Peyronie's disease is discussed as well as current hypothese regarding its origin. Furthermore, there were significant associations between the risk factors for ED and PD, and with significant associations reported between PD and age, obesity, smoking, duration and number of cigarettes smoked per day. Dyslipidaemia, psychological disorders and the presence of at least one risk factor were significantly associated with PD. There were significant associations between a longer duration and poor metabolic control of diabetes and PD.