Medical Abstract:

Originally Published: March 2004

Objective: To compare the morphology of the hymen in adolescent girls who have and have not had sexual intercourse involving penile-vaginal penetration.

Subjects: Female patients aged 13 to 19 years, recruited from an urban adolescent medicine practice.

Methods: Subjects were interviewed in private after completing detailed questionnaires and then underwent a physical examination. External genital inspections were performed using a colposcope with an attached 35-mm camera to document the appearance of the hymen. The presence of notches or clefts was recorded during the examination, and photographs taken at x10 magnification were used to take measurements of the width of the posterior hymenal rim.

Results: Posterior hymenal notches and clefts were more common among girls admitting past intercourse (13/27 [48%]) than in girls who denied intercourse (2/58 [3%]; P = .001), but the mean width of the posterior hymenal rim was not significantly different between the 2 groups (2.5 mm vs 3.0 mm; P = .11). Two subjects who denied intercourse but had posterior hymenal clefts described a painful first experience with tampon insertion.

Conclusions: Deep notches or complete clefts in the posterior rim of the hymen were rare in girls who denied intercourse. Subjects who admitted past intercourse still had nondisrupted, intact hymens in 52% of cases. [1]

PDF file available online includes additional images of hymen.

Medical Abstract:

Originally Published: January 2004

Many clinicians expect that a history of penile-vaginal penetration will be associated with examination findings of penetrating trauma. A retrospective case review of 36 pregnant adolescent girls who presented for sexual abuse evaluations was performed to determine the presence or absence of genital findings that indicate penetrating trauma. Historical information and photograph documentation were reviewed. Only 2 of the 36 subjects had definitive findings of penetration. This study may be helpful in assisting clinicians and juries to understand that vaginal penetration generally does not result in observable evidence of healed injury to perihymenal tissues. [5]

Medical Abstract:

Originally Published: February 2002

Study Objective: To review all existing studies of genital anatomy in girls selected for nonabuse, clarify terminology used to describe hymenal morphology and nonspecific findings, and test consensus terminology in the reevaluation of hymenal morphology and nonspecific findings in 147 premenarchal girls selected for nonabuse.

Methods: Over six months, the authors identified and evaluated 147 premenarchal girls without history of sexual abuse who were referred for gynecological examination. Parents and patients were screened for possible abuse or significant past medical or behavioral history, and each girl was interviewed and then received a complete examination including a genital examination documented by colposcopy with both 35 mm camera and video capabilities. Using established terminology each case was then independently reviewed and hymenal morphology and nonspecific findings documented.

Results: The study population consisted of 147 premenarchal girls; 76.9% were Hispanic, 12.3% African-American, and 10.3% Caucasian. Subjects had a mean age of 63 months (+/- 38) [5 1/4 years]. Hymenal configurations included: annular (concentric) 53%, crescentic (posterior rim) 29.2%, sleeve-like (redundant) 14.9%, septate 2%, and other (imperforate, cribriform) < 1%. Nonspecific findings included peri-hymenal bands, 91.8%; longitudinal intravaginal ridges, 93.8%; hymenal tags, 3.4%; hymenal bumps/mounds, 34%; linea vestibularis, 19%; ventral hymenal cleft/notch at 12 o'clock in 79% of annular or redundant hymens; ventral cleft/notch not at 12 o'clock, 19%; failure of midline fusion, 0.6%; hymenal opening size > 4 mm, 30.6%; erythema, 48.9%; change in vascularity, 37.4%; labial adhesions, 15.6%; posterior hymenal notch/cleft (partial), 18.3%; posterior notch/cleft (complete), 0%; posterior hymenal concavity or angularity, 29.5%. In addition, each case was assessed for the presence of a thickened (45.5%) or irregular (51.7%) and narrowed (22.4%) hymenal edge. Each case was also reviewed for exposed intravaginal anatomy (93%).

Conclusions: The authors concluded that improved techniques and photo documentation have provided examiners with a better understanding of hymenal morphology and that nonspecific genital findings are commonly found in a population of girls selected for nonabuse. A thorough understanding of normal studies and a consistent application of established terminology can prevent the misinterpretation of nonspecific or congenital findings as posttraumatic changes. [2]

Medical Abstract:

Originally Published: June 1998

Since tampon availability has become ubiquitous, several authors have opined about their effect on the virginal hymen, but only one paper has scientifically addressed the subject of tampon use and clefts in the hymens of never-sexually-active adolescent girls. It naturally has become an authority used by the courts. The Emans et al. (1994) study asserts that 'for physicians testifying in court about sexual assault cases, complete clefts in adolescents cannot be attributed to prior tampon use'. On closer inspection, however, it appears that the authors have interpreted their statistical finding using a strict scientific convention (chi 2, P = 0.06 as not having statistical significance) that may mislead in a clinical or legal situation. Indeed, there is a definite possibility that tampon use compared to not having used tampons in their never-sexually-active sample was associated with an increased percentage of complete hymenal clefts (14% vs. 6%; P = 0.06). Nevertheless, clefts were found in both the sexually active and the never-active groups: 20 of their 200 never-sexually-active subjects possessed complete hymenal clefts, as did only 84 of their 100 sexually active subjects. Caution should be used by all physicians asked to testify in courts regarding possible causes of a hymenal cleft. [4]

Medical Abstract:

Originally Published: July 1994

We undertook a prospective study of 300 postmenarcheal female subjects (median age, 18.0 years) to examine (1) the relation of tampon use, sports participation, prior gynecologic examination, and consensual sexual activity to hymenal anatomy, (2) the factors leading to choice of tampons by girls not sexually active, and (3) factors related to ease of gynecologic examination. The sample included 100 subjects in group 1, who denied sexual intercourse and used only pads for menses; 100 subjects in group 2, who denied sexual intercourse and had used tampons; and 100 subjects in group 3, who gave a history of sexual intercourse. Sexually active subjects (81%) were significantly more likely than tampon users and pad users to have "complete clefts" in the lower hymen between the 2 o'clock and 10 o'clock positions (p < 0.001); tampon users were not significantly different from pad users (11% vs 5%). In subjects who were not sexually active, the presence of these complete clefts was not related to participation in sports or to prior pelvic examination. Although median hymenal opening diameter differed in the three groups (1.2 cm for group 1 vs 1.5 cm for group 2 vs 2.5 cm for group 3; p < 0.0001), the ranges of measurements were wide. Tampon users were significantly more likely than pad users to have mothers and friends, but not sisters, who had a favorable attitude toward tampon use. The best predictors of tampon use in a multivariate model were a favorable maternal attitude (odds ratio (OR), 5.3; 95% confidence interval (CI), 2.4, 12.1) and friends' use of tampons (OR 7.9; 95% CI 3.5, 18.1). Only 26% of speculum examinations in pad users were rated as easy compared with 56% of examinations in tampon users and 81% in sexually active young women (p < 0.001). The best predictors of ease of speculum examination were sexual activity (OR 15.9; 95% CI 1.9, 135.3) and tampon use (OR 3.6; 95% CI 1.0, 12.7). This large sample should provide useful data for physicians who testify in sexual assault cases and gives new information on the predictors of tampon use and ease of gynecologic examination in young women. [6]

Medical Abstract:

Originally Published: March 1992

The recent increase in requests for genital examinations in girls who may have been sexually abused has necessitated detailed information not previously available on normal anatomy of the prepubertal girl. This study was undertaken to document the genital anatomy of 211 girls between the ages of 1 month and 7 years who presented for well child care or nongynecologic complaints and who had no history of sexual abuse. Each child's genitalia was examined and photographed, with findings reported reflecting those observed photographically. The study population consisted of 36% blacks, 33.6% white non-Hispanics, 29.9% Hispanics, and 0.5% Asians. Subjects had a mean age of 21 ± 20.6 (SD) months. Extensive labial agglutination [fusion] sufficient to obscure the hymen was noted in 5% (10/211) and partial agglutination in an additional 17% (35/211). A significant difference was noted in hymenal configuration by age, with a fimbriated [fringed] hymen the most common type (46%) in infants aged 12 months or younger and a crescentic hymen the most common (51%) in girls older than 24 months (P le .001). No significant difference was noted in hymen configuration by race. Hymenal bumps (mounds) were observed in 7%, hymenal tags in 3%, vestibular bands in 98%, longitudinal intravaginal ridges in 25%, and external ridges in 15% of subjects in whom the anatomy under study could be visualized. Hymenal notches (clefts) occurred superiorly [above] and laterally [side] on the hymenal rim but none were found inferiorly [below] on the lower half of the hymen. A narrow rounded hymenal ring with a transection was observed in only 1 (0.5%) of 201 subjects and was not considered a normal finding. Transverse hymenal openings measured only in annular and crescentic hymens had a mean which ranged from 2.5 ± 0.8 to 3.6 ± 1.2 mm and varied significantly with age (P = .003). Normal hymenal findings must be recognized by medical professionals so that posttraumatic findings can be diagnosed appropriately. [3]