AIM Although prostate cancer (PCa) is the most common cancer type in men, a replaceable risk factor has not yet been established. In our study, we assessed the relationship between the number of sexual partners, age of first sexual experience and age of first masturbation and prostate cancer incidence. MATERIALS AND METHODS In Ordu University Department of Urology between January 2013 and Sep...

Few systematic studies exist on the sexual behavior of hunter-gatherers and rural central Africans. This study examines the reasons for having sex, the frequency of sex (coitus) per night, sexual practices during the post-partum sex taboo, and beliefs and practices regarding homosexuality, masturbation, the use of sexual stimulants and a variety of other sexual behaviors. Thirty-fi ve Aka and t...

Case Report A 75-year-old man, without previous known diseases or family history of dementia, was seen for slowly progressive behavioral changes. Over the previous 4 years, he insidiously started being sexually uninhibited, making proposals to all women, including his own daughter, and irresistible masturbating several times a day. He also developed many other behavioral features like excessive...

Prisons are invariably unisex institutions where, besides many deprivations, heterosexual expression in its normal sense is absent. It is this characteristic that make prisons settings potentially fertile grounds for sexual aberrations. Since definite and accurate data concerning sexual activities among prison inmates are difficult to obtain, the phenomenon of sexual practices in prisons has tr...

OBJECTIVE This research tests the influences of age, biological, and psychosocial factors on sexual expression in later life. METHOD The American Association of Retired Persons Modern Maturity Sexuality Survey collected data on diagnosed illnesses, treated illnesses, sexual desire, sexual attitudes, partner circumstances, and sexual behavior from 1,384 persons ages 45 and older. Ordered logis...

Significant variation exists in the reported prevalence of dementia-related ISB, with estimates ranging anywhere from 4-5% up to 25%. This variation is likely due to multiple factors. First, individual studies frequently differ in the participants they recruit (e.g., dementia type and severity) and study setting (e.g., community versus long-term care). Second, epidemiologic studies vary in how ...

OBJECTIVE To study psychosexual problems in men undergoing infertility evaluation. DESIGN A cohort observational study. SETTING Male infertility diagnostic center. PATIENT(S) Four hundred twelve men undergoing infertility evaluation between 1999 and 2001. INTERVENTION(S) Baseline and follow-up data on sexual functions. Semen analysis for samples collected by masturbation. A second analy...

OBJECTIVE To explore sexual behavior in terms of masturbation, homosexual contact and coitus in secondary school students in Bangkok. MATERIAL AND METHOD This was a cross-sectional survey research from December, 2002 to January, 2003. 362 students were selected by the multistages simple random sampling technique. A self administered questionnaire was used to collect data on baseline character...

Human asexuality is generally defined as a lack of sexual attraction. We used online questionnaires to investigate reasons for masturbation, and explored and compared the contents of sexual fantasies of asexual individuals (identified using the Asexual Identification Scale) with those of sexual individuals. A total of 351 asexual participants (292 women, 59 men) and 388 sexual participants (221...

MOCHE ARTISANS ON THE COAST of what is now northern Peru wrote perhaps the first Latin American history of sexuality sometime between 150 and 800 C.E. These craftsmen declared their interest in “sexual” subjects by producing a vast amount of pottery that depicted anal intercourse, fellatio, and masturbation. Only rarely did they construct explicit images in which the penis penetrated the vagina...