Sexual Dysfunction and Circumcision

Intact News gives us some interesting studies:

This preliminary study investigates what role early trauma might have in alexithymia acquisition for adults by controlling for male circumcision. Three hundred self-selected men were administered the Toronto Twenty-Item Alexithymia Scale checklist and a personal history questionnaire. The circumcised men had age-adjusted alexithymia scores 19.9 percent higher than the intact men; were 1.57 times more likely to have high alexithymia scores; were 2.30 times less likely to have low alexithymia scores; had higher prevalence of two of the three alex-ithymia factors (difficulty identifying feelings and difficulty describing feelings); and were 4.53 times more likely to use an erectile dysfunction drug. Alexithymia in this population of adult men is statistically significant for having experienced circumcision trauma and for erectile dysfunction drug use.

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METHODS: This prospective study was conducted in the Bungoma district, Kenya, where male circumcision is universally practised. Young males intending to undergo traditional or clinical circumcision were identified by a two-stage cluster sampling method. During the July-August 2004 circumcision season, 1007 males were interviewed 30-89 days post- circumcision. Twenty-four men were directly observed during and 3, 8, 30 and 90 days post-circumcision, and 298 men underwent clinical exams 45-89 days post-procedure. Twenty-one traditional and 20 clinical practitioners were interviewed to assess their experience and training. Inventories of health facilities were taken to assess the condition of instruments and supplies necessary for performing safe circumcisions. FINDINGS: Of 443 males circumcised traditionally, 156 (35.2%) experienced an adverse event compared with 99 of 559 (17.7%) circumcised clinically (odds ratio: 2.53; 95% confidence interval: 1.89-3.38). Bleeding and infection were the most common adverse effects, with excessive pain, lacerations, torsion and erectile dysfunction also observed. Participants were aged 5 to 21 years and half were sexually active before circumcision. Practitioners lacked knowledge and training. Proper instruments and supplies were lacking at most health facilities.

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METHODS: Ninty-five patients were investigated on erectile function by questionnaire before and after circumcision, respectively. RESULTS: Eighteen patients suffered from mild erectile dysfunction before circumcision, and 28 suffered from mild or moderate erectile dysfunction after circumcision(P = 0.001). Adult circumcision appeared to have resulted in weakened erectile confidence in 33 cases(P = 0.04), difficult insertion in 41 cases(P = 0.03), prolonged intercourse in 31 cases(P = 0.04) and improved satisfaction in 34 cases(P = 0.04). CONCLUSIONS: Adult circumcision has certain effect on erectile function, to which more importance should be attached.

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METHODS: The vibrotactile thresholds were measured at the forefinger and glans penis in 73 normal volunteer controls and 96 patients with simple redundant prepuce before and after circumcision by biological vibration measurement instrument, and the changes in the perception sensitivity of the body surface were analyzed. RESULTS: The G/F (glans/finger) indexes in the control and the test group were respectively 2.39 +/- 1.72 and 1.97 +/- 0.71, with no significant difference in between (P > 0.05). And those of the test group were 1.97 +/- 0.71, 2.64 +/- 1.38, 3.09 +/-1.46 and 2.97 +/- 1.20 respectively before and 1, 2 and 3 months after circumcision, with significant difference between pre- and post-operation (P < 0.05). CONCLUSION: There is a statistic difference in the glans penis vibration perception threshold between normal men and patients with simple redundant prepuce. The glans penis perception sensitivity decreases after circumcision.

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SUBJECTS AND METHODS: Adult male volunteers with no history of penile pathology or diabetes were evaluated with a Semmes-Weinstein monofilament touch-test to map the fine-touch pressure thresholds of the penis. Circumcised and uncircumcised men were compared using mixed models for repeated data, controlling for age, type of underwear worn, time since last ejaculation, ethnicity, country of birth, and level of education. RESULTS: The glans of the uncircumcised men had significantly lower mean (sem) pressure thresholds than that of the circumcised men, at 0.161 (0.078) g (P = 0.040) when controlled for age, location of measurement, type of underwear worn, and ethnicity. There were significant differences in pressure thresholds by location on the penis (P < 0.001). The most sensitive location on the circumcised penis was the circumcision scar on the ventral surface. Five locations on the uncircumcised penis that are routinely removed at circumcision had lower pressure thresholds than the ventral scar of the circumcised penis. CONCLUSIONS: The glans of the circumcised penis is less sensitive to fine touch than the glans of the uncircumcised penis. The transitional region from the external to the internal prepuce is the most sensitive region of the uncircumcised penis and more sensitive than the most sensitive region of the circumcised penis. Circumcision ablates the most sensitive parts of the penis.

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Methods.  This cross-sectional study was conducted at a primary care clinic over a 3-month period in 2008. Men aged 18–70 years attending the clinic were recruited, and they completed self-administered questionnaires that included the Premature Ejaculation Diagnostic Tool (PEDT), International Index of Erectile Function, sociodemography, lifestyle, and medical illness. The operational definition of PE included PE and probable PE based on the PEDT. Main Outcome Measure.  Prevalence of PE. Results.  A total of 207 men were recruited with a response rate of 93.2%. There were 97 (46.9%) Malay, 57 (27.5%) Chinese, and 53 (25.6%) Indian, and their mean age was 46.0 ± 12.7 years. The prevalence of PE was 40.6% (N = 82) (PE: 20.3%, probable PE: 20.3% using PEDT). A significant association was found between ethnicity and PE (Indian 49.1%, Malay 45.4%, and Chinese 24.6%; χ2 = 8.564, d.f. = 2, P = 0.014). No significant association was found between age and PE. Multivariate analysis showed that erectile dysfunction (adjusted odds ratio [OR] 4.907, 95% confidence interval [CI] 2.271, 10.604), circumcision (adjusted OR 4.881, 95% CI 2.346, 10.153), sexual intercourse ≤5 times in 4 weeks (adjusted OR 3.733, 95% CI 1.847, 7.544), and Indian ethnicity (adjusted OR 3.323, 95% CI 1.489, 7.417) were predictors of PE. Conclusion.  PE might be frequent in men attending primary care clinics. We found that erectile dysfunction, circumcision, Indian ethnicity, and frequency of sexual intercourse of ≤5 times per month were associated with PE. These associations need further confirmation.

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MATERIALS AND METHODS: Men 18 years old or older when circumcised were identified by billing records during a 5-year period at an academic medical center. Medical charts were reviewed for confirmation of the procedure and to identify the indication(s). These men were surveyed to assess erectile function, penile sensitivity, sexual activity and overall satisfaction. Data were analyzed using paired t tests to compare category scores before and after circumcision. RESULTS: A total of 123 men were circumcised as adults. Indications for circumcision included phimosis in 64% of cases, balanitis in 17%, condyloma in 10%, redundant foreskin in 9% and elective in 7%. The response rate was 44% among potential responders. Mean age of responders was 42 years at circumcision and 46 years at survey. Adult circumcision appears to result in worsened erectile function (p = 0.01), decreased penile sensitivity (p = 0.08), no change in sexual activity (p = 0.22) and improved satisfaction (p = 0.04). Of the men 50% reported benefits and 38% reported harm. Overall, 62% of men were satisfied with having been circumcised.

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Of the 200 men who underwent urethroplasty 152 who were 17 to 83 years old (mean age 45.7) completed the questionnaire. Average followup was 36 months (range 3 to 149). Overall there was a similar incidence of sexual problems after urethroplasty and circumcision. Penile skin flap urethroplasty was associated with a slightly higher incidence of impaired sexual function than other procedures (p > 0.05). Men with a longer stricture were most likely to report major changes in erectile function and penile length (p < 0.05) but improvement was evident with time in 61.8%.

- from here Other points made by the article:

Eighteen percent of adult American men—three-fourths of whom are circumcised—have ED, affecting 18 million men. Circumcision’s role as a risk factor may be reflected in ED drug sales; while the United States represents 5% of the world’s population it also accounts for 46% of Viagra sales. [...] A fourth before-and-after study found that 35% of participants had a worsened sex life after circumcision and that their partners had a 46% reduction in satisfaction. The study implicated loss of nerve endings as a reason—addressed below. The true dissatisfaction rate is probably higher than these failure rates since all of the men elected circumcision, and would naturally be biased toward the outcome being beneficial even when it wasn’t.

It is certainly a good read and another argument against circumcision.