After having intercourse or sex for the first time, a person may experience a range of physical or emotional reactions. Common physical reactions vary, too, and can include soreness, numbness, pleasure, orgasm, no orgasm, lubrication, no lubrication, irritation, urinary tract infection (UTI) [2], vaginal infection, or a sexually transmitted infection (STI) [3], with or without symptoms [4]. Com...

In describing 500 cannulations of the internal jugular vein using their innovative technique, English et al recorded as complications one pneumothorax and three haematomas formed by entering an artery.' Other rare early complications of this or of closely related methods have subsequently been encountered, chiefly in small infants. These include pleural damage with pneumothorax, direct tracheal...

BACKGROUND In Germany, immunization against human papillomaviruses (HPV) is free of charge for all females aged 12 to 17 years. Since HPV infection rates rise soon after first intercourse, immunization against HPV should be completed before sexual debut. Knowledge of country-specific data on age at first intercourse and related risk factors is important to optimize prevention of HPV and other s...

PURPOSE To compare pregnancy rates when women have intercourse on self-estimated high and peak fertile days and when they only have intercourse on low fertile days during the fertile window (FW). STUDY DESIGN AND METHODS We used a prospective observational cohort study design. Our convenience sample included 124 women who utilized our online charting Web sites to achieve pregnancy from Januar...

background: implantation failure is the most important cause of recurrent in vitro fertilization/intra cytoplasmic sperm injection (ivf/icsi) failure. several reports suggest that intercourse during the peritransfer period might improve pregnancy rates. this study is designed to determine whether intercourse during the peritransfer period will improve pregnancy and implantation rates in patient...

OBJECTIVE To examine the relationship between breastfeeding and resumption of vaginal intercourse; to determine the association between these behaviours and age, parity, marital status, mode of delivery, and contraceptive use; and to identify factors associated with resumption of intercourse among Canadian women in the early postpartum period. DESIGN Prospective survey. SETTING Eleven obste...

BACKGROUND Given the higher prevalence of risky sexual behaviors and substance use, adolescents and youths are at risk for HIV. Despite its importance, however, to the best of our knowledge, there are only a few researches on risky behaviors in Chinese adolescents/youths. The present study aimed to describe the prevalence of sexual and substance use behaviors among a Chinese sample of senior hi...

OBJECTIVES Self-reported anal intercourse by female sex workers (FSWs) documented in recent studies from India range between 11.9% and 22%. However, comparable data on anal intercourse and condom use from male clients of FSWs is lacking. Using data from a bio-behavioural survey (2009-2010), we examined prevalence of anal intercourse, male clients' self-reported inconsistent condom use during an...