Genital coevolution between the sexes is expected to be common because of the direct interaction between male and female genitalia during copulation. Here we review the diverse mechanisms of genital coevolution that include natural selection, female mate choice, male-male competition, and how their interactions generate sexual conflict that can lead to sexually antagonistic coevolution. Natural...

BACKGROUND Because many human papillomavirus (HPV) infections are transient, rates of transmission may be miscalculated if the interval between testing spans several months. We examined rates of concordance and transmission in heterosexual couples over short intervals. METHODS  Twenty-five adult couples were enrolled and sampled for HPV DNA from the genitals, hand, and mouth 5 times over a 6-...

Normal sexual differentiation in the genital organs is essential for the animal species that use sexual reproduction. Although it is known that doublesex (dsx) is required for the sexual development of the genitalia in various insect species, the direct target genes responsible for the sexual differentiation of the genitalia have not been identified. The lozenge (lz) gene is expressed in the fe...

The role of sexual selection in fuelling genital evolution is becoming increasingly apparent from comparative studies revealing interspecific divergence in male genitalia and evolutionary associations between male and female genital traits. Despite this, we know little about intraspecific variance in male genital morphology, or how male and female reproductive traits covary among divergent popu...

BACKGROUND The mucosal changes associated with female genital schistosomiasis (FGS) encompass abnormal blood vessels. These have been described as circular, reticular, branched, convoluted and having uneven calibre. However, these characteristics are subjective descriptions and it has not been explored which of them are specific to FGS. METHODS In colposcopic images of young women from a schi...

BACKGROUND Little prospective data exists regarding the procedures constituting female genital plastic/cosmetic surgery (FGPS). OBJECTIVES To evaluate whether the procedures of labiaplasty and vaginoperineoplasty improve genital self image, and evaluate effects on sexual satisfaction. METHODS Prospective cohort case-controlled study of 120 subjects evaluated at baseline, 6, 12, and 24 month...

Morphological description of sand,flies has remained a neglected area. The different organs used in taxonomy have not yet been described adequatelAy with the scanning electron microscopy (SEM). We have examined the external genital structures offemales of three Old World phlebotomine sand,flies under SEMand recorded the morphological variations of the organs. We have,found the,female external g...

ECR 2004 – Categorical Course “Pediatric Radiology” Abstract Congenital anomalies of the female genital tract result from müllerian duct anomalies and/or abnormalities of the urogenital sinus or cloaca. Due to the close developmental relationship between the genital and the urinary tracts, association of anomalies in both systems are common. This article reviews the appearance of developmental ...