Abstract
This study aimed to investigate the situations of pornography use among male college students of China, to explore the addiction possibility for pornography use, and to study the associations between pornography use and reproductive hormone levels and semen quality. Five hundred sixty-eight participants met the inclusion criteria and finished all of the questionnaires and hormone level and semen parameter examinations. A majority of participants (except one) had pornography use experience, 94.2% participants started pornography use before college, and 95.9% participants reported they had masturbation experience when using pornography. Early contact to pornography, frequent pornography use, high amount of time spending on pornography use, and frequent masturbation during pornography use were correlated with addiction trends. Earlier pornography use was found to be associated with lower serum prolactin (PRL), follicle-stimulating hormone (FSH), and progesterone (Prog), as well as lower sperm concentration and total sperm count. Higher frequency of pornography use was associated with lower serum estrogen (E2). In conclusion, pornography use was common among male college students in China. Early contact, high frequent use, and high frequency of masturbation during pornography use could lead to addiction trends and aberrant reproductive hormone levels and semen quality.
Highlights
Sex demand is considered an embarrassing issue in many eastern countries, in China in the past years
We found that pornography use was quite common among college students in China
Pornography use was correlated with masturbation behavior and exposure to prolonged pornography may lead to addictive potential
Summary
Sex demand is considered an embarrassing issue in many eastern countries, in China in the past years. It is hard for adolescents to get sex information from parents or schools. Adolescents during the puberty process have high demands for sexual sensation and sex information physically and psychologically. A 6year longitudinal study showed that among middle school students of Hong Kong, from grade 7 (average age = 12.7) to grade 12, pornography consumption increased significantly, and boys were more likely to contact pornography works [8, 9]. The pornography exposure to adolescents, especially to college students in mainland of China were not clear
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