The Potential Associations of Pornography Use with Sexual Dysfunctions: an Integrative Literature Review of Observational Studies
Total Page:16
File Type:pdf, Size:1020Kb
Journal of Clinical Medicine Review The Potential Associations of Pornography Use with Sexual Dysfunctions: An Integrative Literature Review of Observational Studies Aleksandra Diana Dwulit and Piotr Rzymski * Department of Environmental Medicine, Poznan University of Medical Sciences, 60-806 Poznan, Poland * Correspondence: [email protected]; Tel.: +48-61854-7604 Received: 30 May 2019; Accepted: 24 June 2019; Published: 26 June 2019 Abstract: This paper reviews the associations between pornography use and sexual dysfunction based on evidence from observational studies. The existing data in this regard mostly derive from cross-sectional investigations and case reports. There is little if no evidence that pornography use may induce delayed ejaculation and erectile dysfunction, although longitudinal studies that control for confounding variables are required for a full assessment. The associations between pornography use and sexual desire may differ between women and men although the existing data is contradictory and causal relationships cannot be established. The strongest evidence is available for the relation of pornography use with decreased sexual satisfaction, although the results of prospective studies are inconsistent. The paper outlines future research prospects beneficial in understanding the nature of associations between pornography use and sexual dysfunctions in men and women. Keywords: pornography; sexual dysfunction; erectile dysfunction; delayed ejaculation; sexual desire; sexual satisfaction 1. Introduction The existing literature provides a number of varying descriptions of the term pornography. According to the Final Report of the Attorney General’s Commission on Pornography, it can be defined as any material that is predominantly sexually explicit and intended primarily for the purpose of sexual arousal [1]. Currently, pornography represents an important economic venture [2,3]. Its greatest development has occurred along with the emergence of computer technologies and the expansion of the Internet [4,5]. Due to a high sense of anonymity and almost unrestricted access, the Internet has become the most important medium of dissemination of pornographic content (known as online pornography), particularly in the form of images and videos [6,7]. The ease, arousal strength, and diversity with which pornography can be reached online indicates that it may operate as a supernormal stimulus [8]. According to various epidemiological studies, a relatively large number of adults have been exposed to pornography [9–12]. Recent representative surveys demonstrate that in developed countries with unrestricted Internet access, such as the United States and Australia, the majority of men (64–70%) and approx. one quarter/third (23–33%) of women are using pornography [13,14]. However, the number of pornography users is also relatively high in developing countries—recent surveys have shown that over half of students in Ethiopia and Bangladesh have been exposed to it [11,15]. The extensive use of pornography is also supported by data provided by Pornhub, one of the largest online pornographic websites, which clearly indicate that it is primarily men that are associated with content of this type (74%), and that the number of visitors to pornographic sites is growing from year to year (Figure1). Some men deal with pornography on a regular, daily basis [ 16]. At the same time, the J. Clin. Med. 2019, 8, 914; doi:10.3390/jcm8070914 www.mdpi.com/journal/jcm J. Clin. Med. 2019, 8, x FOR PEER REVIEW 2 of 17 J. Clin. Med. 2019, 8, 914 2 of 15 At the same time, the percentage of women interested in using this type of content is growing [17]. percentageThe Pornhub of women service interested is usually invisited using by this young type people of content under is growing the age 34 [17 from]. The the Pornhub United serviceStates, isthe usuallyUnited visited Kingdom by young and India. people An under emerging the age and 34 as from yet thenot Unitedfully assessed States, the issue United is the Kingdom unintentional and India.contact An from emerging advertising and as or yet spam not fully e-mail assessed messages issue both is the of which unintentional may sometimes contact from be difficult advertising to avoid or spam[18]. e-mail messages both of which may sometimes be difficult to avoid [18]. Figure 1. Statistics of pornography use in the period of 2013–2018 according to data shared by Pornhub: (a)Figure annual 1. number Statistics of visitorsof pornography to Pornhub, use (b in) visitors the period to Pornhub of 2013 by–2018 age. according to data shared by Pornhub: (a) annual number of visitors to Pornhub, (b) visitors to Pornhub by age. Although interest in pornographic content can be partially considered as a natural element in the developmentAlthough interest of sexual in pornographic experience in youngcontent people, can be thepartially multiplicity considered and as diversity a natural of availableelement in onlinethe development pornographic of materials sexual experience as well as thein young difficulty people, of restricting the multiplicity access to and them diversity lead to aof question available ononline the potential pornographic effects materials of pornography as well consumption.as the difficulty There of restricting is a steady access increase to them in number lead to of a studiesquestion addressingon the potential the prevalence, effects of patterns,pornography outcomes, consumption. and various There other is a aspectssteady increase related toin pornographynumber of studies use asaddr clearlyessing indicated the prevalence, by a systematic patterns, search outcomes of English, and language various other papers aspects indexed related in the to PubMed pornography/Medline use database—aas clearly keyindicated term “pornography”by a systematic yields search 142 papersof English published language in the papers period 1980–1989,indexed in 238 the papersPubMed/Medline in 1990–1999, database 524 papers—a key in 2000–2009, term “pornography” and as many yields as 949 142 papers papers in published 2010–2018. in However,the period despite1980–1989, a continuous 238 papers interest in 1990 in– the1999, study 524 ofpapers various in aspects2000–2009 of, pornography and as many use,as 949 there papers are number in 2010– of2018. unresolved However, issues despite regarding a continuous the nature interest and in magnitude the study of various these e ffaspectsects. Forof pornography example, some use, investigationsthere are number demonstrate of unresolved that pornography issues regarding may fit the into nature the addiction and mag frameworknitude of viathese mechanisms effects. For similarexample to chemical, some investigation compoundss [ 19demonstrate,20] although that controversies pornography in thismay regard fit into exist the [ 21addiction–24]. An framework addiction tovia pornography mechanisms is notsimilar recognized to chemical in the c DSM-5ompounds and ICD-11[19,20] classificationsalthough controversies (although thein this latter regard specifies exist a[21 diagnostic–24]. An categoryaddiction of to Compulsive pornography Sexual is not Behavior recognized Disorder in the underDSM-5 impulse and ICD control-11 classifications disorders that(although may be the used latter to diagnosespecifies a problematic diagnostic category pornography of Compulsive use), various Sexual studies Behavior refer toDisorder it rather under as “self-perceivedimpulse control pornography disorders that addiction” may be [12 used,16,25 to– 27diagnose], and some problematic alternative pornography models based use) on, moralvarious incongruence,studies refer compulsivity, to it rather oras impulsivity “self-perceived were alsopornography proposed toaddiction” describe problematic [12,16,25–27] pornography, and some usealternative [21,28,29 ].models Whether based pornography on moral incongruence may be associated, compulsivity with changes, or impulsivity in sexual were function also isproposed also a subjectto describe open problematic to wide discussion. pornography However, use [21,28,29] there are. numberWhether ofpornography recognized riskmay factorsbe associated for sexual with dysfunctionchanges in encompassingsexual function medical is also conditions, a subject open substance to wide abuse, discussion. medication However, use, as wellthere as are cultural number and of socialrecognized factors [r30isk] whichfactors are for di sexualfficult dysfunction to address in encompassing studies focusing medical solely onconditions, pornography substance use.In abuse, the generalmedication population, use, as the well most as frequentlycultural and identified social factors sexual [30] dysfunctions which are include difficult premature to address ejaculation in studies andfocusing erectile solely dysfunction on pornography in men and use. desire In the andgeneral arousal population, dysfunction the mo inst women frequently [31], identified and a number sexual ofdysfunctions studies have include aimed topremature evaluate ejaculation the potential and associations erectile dysfunction between the in men occurrence and desire of these and earousalffects anddysfunction pornography in women use. At [31] the, and same a number time, the of potential studies have effects aimed of pornography to evaluate the use potential are the subject associations of a numberbetween of the nonacademic occurrence discussions, of these effects and and some pornography publicly expressed use. At the opinions same time, in this the regard potential appear