This article deals with the study of the prevalence, etiology, pathogenesis and treatment of frotteurism and necrophilia, which are socially dangerous and are of great interest to the medical community. To summarize all available literature on frotteurism and necrophilia. Based on the PRISMA guidelines, the current review brings together all the existing literature on frotteurism and necrophilia. Socially dangerous paraphilias may be caused by biological, psychological and social factors and are treated with antiandrogens, gonadotropin-releasing hormone analogs and selective serotonin reuptake inhibitors as well as psychotherapy. Analysis of the data on the treatment of socially dangerous paraphilias revealed good results across each type of paraphilia and treatment method used, demonstrating a significant reduction in deviant behavior and paraphilic desires after the treatment and into the follow-up phase. Yet, all of these results cannot be verifiable, as conclusions about them were made based on the patients’ personal reports, which may not be objective. High-quality placebo-controlled studies on the treatment of socially dangerous paraphilias are lacking. Clinicians should be aware that the prevalence of socially dangerous paraphilias is not negligible and that people with deviant sexual urges should be encouraged to seek professional help before committing a crime or a self-injurious act. More extensive epidemiological studies are required to clarify the actual prevalence of socially dangerous paraphilias in the population and methods of their treatment alongside with destigmatization of patients with paraphilias and engaging them in treatment before they commit a crime.