青岛大学师范生性观念和性行为调查

目的：了解大学生性知识、性观念和性行为现状,确立高等院校性健康教育的侧重点。方法：采用分层整群抽样法对师范学院１￣４年组１４７２名大学生进行无记名问卷调查赞成非婚同居的大学生占１１．０１％（男生１７．９１,女生６．７２％）;手淫率为２１．３３％（男生３７．９４％,女生１１．０１％）;有婚前性行为体验的大学生达３．８７％（男生６．７４％,女生２．０９％）;希望在大学受到系统性教育的大学生占７０．５２     

Infantile masturbation and paroxysmal disorders

A recurrent paroxysmal presentation in children leads to different diagnoses and among them are neurologic and cardiac etiologies. Infantile masturbation is not a well known entity and cannot be differentiated easily from other disorders. Aim of this study is to elucidate and differentiate this condition from epileptic seizures. We report 3 cases of 10 to 30 mth old girls of infantile masturbation that their symptoms initiated at 2, 3 and 8 mth of age. These present with contraction and extension of lower extremities, scissoring of legs, perspiration, changing face color. In 2 cases body rocking and legs rubbing initiated then there after. Masturbation is one of the paroxysmal non-epileptic conditions of early infancy and is in differential diagnosis of epileptic seizures.     

Masturbatory Behavior in a Population Sample of German Women

BackgroundHuman masturbation is and has been a very heatedly and controversially discussed topic in human sexuality. Studies investigating aspects of human masturbatory behavior and female sexual pleasure remain scarce. This lack of knowledge opens the door to further controversies and misconceptions.AimTo conduct an explorative study on female masturbatory behavior to gain more insight into this nonreproductive sexual behavior and provide an empiric basis for future research.MethodsA total of 425 German women (mean age 26.6 years), 61.4% of whom were in a committed relationship, completed a comprehensive 76-item online survey consisting of study-specific, self-constructed questions and validated and standardized questionnaires.Main Outcome MeasureCorrelation and comparative analyses were performed. Results are presented numerically as means and percentages.ResultsThe majority (94.5%) of women indicated having masturbated at least once in their life, with a mean age at first masturbation of 14 years. 85.9% of women described masturbation as “genital self-stimulation until reaching orgasm.” The majority of women reported masturbating 2 or 3 times a week (26.8%) or once a week (26.3%). Factors independently associated with masturbation frequency were relationship status, orgasm frequency, openness to new experience, and body acceptance. Almost all women (91.5%) reported masturbating also when in a relationship. For the 5.5% of women who had never engaged in autoerotic stimulation, the 2 main reasons were “I hardly every feel sexual desire” and “sex is a partner-only thing.” 7.6% reported never experiencing an orgasm during masturbation, whereas 50.3% indicated that they always reached orgasm during autostimulation. The reasons cited for engaging in masturbation were manifold, ranging from sexual desire to relaxation and stress reduction. The most common fantasy included the partner; however, 20.7% fantasized about being “defenseless,” and 8.7% thought about a “disturbing” scenario that they chose not to elaborate further.Clinical ImplicationsFor many women, masturbation does not represent “a partner substitute” to seek sexual pleasure, but rather is a stress coping and relaxation strategy.Strengths & LimitationsThis is one of the very first studies to provide more in-depth insight into a variety of aspects related to female masturbation. The representativeness of the data is limited to this particular sample of German women.ConclusionOur findings highlight the huge diversity in terms of masturbation frequency, motivations, styles, and preferences that can be observed in this particular population sample of German women.Burri A, Carvalheira A. Masturbatory Behavior in a Population Sample of German Women. J Sex Med 2019;16:963–974.     

Prevalence of Masturbation and Associated Factors in a British National Probability Survey

A stratified probability sample survey of the British general population, aged 16 to 44 years, was conducted from 1999 to 2001 (N = 11,161) using face-to-face interviewing and computer-assisted self-interviewing. We used these data to estimate the population prevalence of masturbation, and to identify sociodemographic, sexual behavioral, and attitudinal factors associated with reporting this behavior. Seventy-three percent of men and 36.8% of women reported masturbating in the 4 weeks prior to interview (95% confidence interval 71.5%–74.4% and 35.4%–38.2%, respectively). A number of sociodemographic and behavioral factors were associated with reporting masturbation. Among both men and women, reporting masturbation increased with higher levels of education and social class and was more common among those reporting sexual function problems. For women, masturbation was more likely among those who reported more frequent vaginal sex in the last four weeks, a greater repertoire of sexual activity (such as reporting oral and anal sex), and more sexual partners in the last year. In contrast, the prevalence of masturbation was lower among men reporting more frequent vaginal sex. Both men and women reporting same-sex partner(s) were significantly more likely to report masturbation. Masturbation is a common sexual practice with significant variations in reporting between men and women.     

Penile ring entrapment and strangulation: A case report at Kampala International University Teaching Hospital in Western Uganda

IntroductionPenile ring entrapment during self-sexual satisfaction is one of the rare cases in general and urologic surgery. When the penile shaft is entrapped in a metal ring, one risks possible complete loss of distal penis to strangulation and gangrene. We present management of a case of entrapped penile ring with penile strangulation in resource limited set up amidst absence of management guidelines. The case has been reported in line with SCARE criteria (1).Presentation of caseA 43-year-old male presented after 72 h of pilot ball bearing ring penile insertion for sustainability of an erection, with 24 -h history of painful penile swelling and acute urine retention. The patient had history of using recreational drugs and erectile dysfunction with evidence of high-grade penile injuries at presentation. The ring was cut using electrically powered angled grinder, with full penile recovery on conservative management in eight months of follow up.DiscussionEntrapped penile ring is clinically diagnosed but establishing incentive of insertion is difficult just like identifying a correct technique to remove it. Entrapped ring obstructs blood and lymphatic flow leading to oedema and ischaemia with associated penile tissue injuries. High grade penile injuries or penile amputation are sequels of delayed ring removal and good outcomes are tangible through timely multidisciplinary approach.ConclusionEroticism and erectile dysfunctions are known incentive to using penile rings to sustain erection. Delayed ring removal results in its entrapment and penile strangulation and related complications. Timely removal of ring requires multidisciplinary approach and local management protocols.     

Spontaneous pneumomediastinum and subcutaneous emphysema after masturbation

Spontaneous pneumomediastinum is a rare condition that mostly affects young men and generally follows a benign and self-limiting course. In contrast to secondary pneumomediastinum, which is caused by trauma, iatrogenic intervention or esophageal perforation, spontaneous pneumomediastinum is triggered by violent coughing, excessive vomiting, strenuous physical exercise or Valsalva maneuver. It results from an abrupt increase in intrathoracic pressure leading to alveolar rupture and air leak along the tracheobronchial tree into the mediastinal cavity. Extended spontaneous pneumomediastinum goes along with subcutaneous emphysema of the chest, neck or head. We present a case of a healthy young man who developed pneumomediastinum and profound subcutaneous emphysema with onset during masturbation. Since there is no literature on spontaneous pneumomediastinum associated with autoerotic experiences, we consider our case an unusual presentation of this entity.     

Correlates of Early Overt and Covert Sexual Behaviors in Heterosexual Women

We used data provided by 417 Kinsey-0 and Kinsey-1 heterosexual women using an anonymous computerized survey to determine the adult correlates of two female–female behaviors that occurred before age 18; 25.4% of participants reported engaging in one or both behaviors. Sexual experimentation with females and masturbating using images of females before age 18 were statistically significant predictors of four different female–female behaviors in adulthood: sexual contact with females, masturbating using images of females, preferring a female fantasy partner while having sex with a favorite (male) partner, and voyeurism directed at females; 27.3% of the participants reported engaging in one or more of the latter four behaviors. The analogous early female–male behaviors were not statistically significant predictors of female–female behaviors in adults. Conditioning resulting from participation in these early female–female behaviors might explain the correlations between the two early behaviors and the subsequent four adult same-gender behaviors. The earliest and latest ages that participants engaged in each early behavior and case-by-case analysis showed that the sequence of events leading to the female–female adult behaviors was initial sexual experimentation with similar age females (at a median age of 9 years) followed by masturbating using images of females (at a median age of 15). These results suggest that conditioning and other forms of learning play an important role in establishing coexisting same-gender orientations in heterosexual women.     

Review of Effective Interventions for Socially Inappropriate Masturbation in Persons with Cognitive Disabilities

Surveys of the sexual behaviors of persons with cognitive disabilities report as a main problem unacceptably displayed autoerotic behaviors that are appropriate in private, but inappropriate or illegal in public situations. Public or distractingly excessive masturbation is socially unacceptable and has been addressed with several successful interventions different in nature. This review of the literature investigates factors that lead to necessary intervention, identifies associations of different effective treatment approaches with types of cognitive disabilities, and examines the evolution of documented interventions from the late 1960s to the early 2000s. Data suggest that theoretical advances toward more humane, supportive and self-regulative interventions are more likely to help persons with milder cognitive disabilities. Self-regulation, or differentiated control over the public aspect of masturbatory behaviors is less likely to be accomplished in cases with more severe cognitive and social skill deficits. Ethical and legal questions of different treatment approaches are discussed.