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Concept: Frenulum of prepuce of penis


ABSTRACT Male circumcision reduces female-to-male HIV transmission. Hypothesized mechanisms for this protective effect include decreased HIV target cell recruitment and activation due to changes in the penis microbiome. We compared the coronal sulcus microbiota of men from a group of uncircumcised controls (n = 77) and from a circumcised intervention group (n = 79) at enrollment and year 1 follow-up in a randomized circumcision trial in Rakai, Uganda. We characterized microbiota using16S rRNA gene-based quantitative PCR (qPCR) and pyrosequencing, log response ratio (LRR), Bayesian classification, nonmetric multidimensional scaling (nMDS), and permutational multivariate analysis of variance (PerMANOVA). At baseline, men in both study arms had comparable coronal sulcus microbiota; however, by year 1, circumcision decreased the total bacterial load and reduced microbiota biodiversity. Specifically, the prevalence and absolute abundance of 12 anaerobic bacterial taxa decreased significantly in the circumcised men. While aerobic bacterial taxa also increased postcircumcision, these gains were minor. The reduction in anaerobes may partly account for the effects of circumcision on reduced HIV acquisition. IMPORTANCE The bacterial changes identified in this study may play an important role in the HIV risk reduction conferred by male circumcision. Decreasing the load of specific anaerobes could reduce HIV target cell recruitment to the foreskin. Understanding the mechanisms that underlie the benefits of male circumcision could help to identify new intervention strategies for decreasing HIV transmission, applicable to populations with high HIV prevalence where male circumcision is culturally less acceptable.

Concepts: HIV, Cellular respiration, Foreskin, Penis, Circumcision, Glans penis, Frenulum of prepuce of penis, Foreskin restoration


The traditional surgical approach to penile fracture is to perform a circumferential subcoronal degloving incision emergently to repair the injury. This approach necessitates circumcision to avoid foreskin complications. We present four men who had a delayed foreskin-sparing approach and discuss its advantages.

Concepts: Foreskin, Penis, Circumcision, Glans penis, Masturbation, Frenulum of prepuce of penis, Phimosis, Foreskin restoration


Genital injury can occur at any age of life but is most common in the pediatric population. Hair-tourniquets and circumcision procedures are the most common causes of penile injury in children. Foreskin trauma, aside from zipper related injuries, is sparsely reported. We describe the case of an 8-year-old male who presented with foreskin entrapment caused by bathing suit mesh. Management and literature review are discussed.

Concepts: Foreskin, Penis, Physical trauma, Circumcision, Glans penis, Masturbation, Frenulum of prepuce of penis, Foreskin restoration


WHAT’S KNOWN ON THE SUBJECT? AND WHAT DOES THE STUDY ADD?: The sensitivity of the foreskin and its importance in erogenous sensitivity is widely debated and controversial. This is part of the actual public debate on circumcision for non-medical reason. Today some studies on the effect of circumcision on sexual function are available. However they vary widely in outcome. The present study shows in a large cohort of men, based on self-assessment, that the foreskin has erogenous sensitivity. It is shown that the foreskin is more sensitive than the uncircumcised glans mucosa, which means that after circumcision genital sensitivity is lost. In the debate on clitoral surgery the proven loss of sensitivity has been the strongest argument to change medical practice. In the present study there is strong evidence on the erogenous sensitivity of the foreskin. This knowledge hopefully can help doctors and patients in their decision on circumcision for non-medical reason. OBJECTIVES: To test the hypothesis that sensitivity of the foreskin is a substantial part of male penile sensitivity. To determine the effects of male circumcision on penile sensitivity in a large sample. SUBJECTS AND METHODS: The study aimed at a sample size of ≈1000 men. Given the intimate nature of the questions and the intended large sample size, the authors decided to create an online survey. Respondents were recruited by means of leaflets and advertising. RESULTS: The analysis sample consisted of 1059 uncircumcised and 310 circumcised men. For the glans penis, circumcised men reported decreased sexual pleasure and lower orgasm intensity. They also stated more effort was required to achieve orgasm, and a higher percentage of them experienced unusual sensations (burning, prickling, itching, or tingling and numbness of the glans penis). For the penile shaft a higher percentage of circumcised men described discomfort and pain, numbness and unusual sensations. In comparison to men circumcised before puberty, men circumcised during adolescence or later indicated less sexual pleasure at the glans penis, and a higher percentage of them reported discomfort or pain and unusual sensations at the penile shaft. CONCLUSIONS: This study confirms the importance of the foreskin for penile sensitivity, overall sexual satisfaction, and penile functioning. Furthermore, this study shows that a higher percentage of circumcised men experience discomfort or pain and unusual sensations as compared with the uncircumcised population. Before circumcision without medical indication, adult men, and parents considering circumcision of their sons, should be informed of the importance of the foreskin in male sexuality.

Concepts: Foreskin, Penis, Circumcision, Glans penis, Masturbation, Frenulum of prepuce of penis, Phimosis, Foreskin restoration


Although existing evidence is insufficient to recommend routine neonatal male circumcision, it is a procedure commonly performed in the United States. There are no commercially available infant penile models available for circumcision training. We improved the design of a low-fidelity penile model constructed of cocktail wieners following the one by Brill and Wallace (Fam Med 2007;39:241-243) and attached it to a high-fidelity infant simulator. Providing simulated movement and crying similar to what is encountered in routine newborn circumcisions create a more realistic training scenario.The study objectives were to (1) evaluate the educational experience of a simulated skill training program as perceived by participants based on a comparison scale and (2) evaluate the fidelity of the simulated model.

Concepts: Foreskin, Penis, Circumcision, Glans penis, Frenulum of prepuce of penis, Brit milah, Phimosis, Foreskin restoration


Plastic surgeons reconstruct hard and soft tissues in many parts of the human body. Penile reconstruction is unique in that the target tissue has to be soft but intermittently rigid. There are many ways to treat penile defects. The ideal reconstruction must take into considerations sensation, cosmesis, and erectile functions. There is limited literature available on the management of penile glans defect. In this report, we present the reconstruction of penile glans defect, after surgical excision of Bowen disease, using a bipedicled foreskin flap of bucket handle type. It is easy to perform and highly effective, and importantly, both cosmetic and functional outcomes at 1-year follow-up were quite satisfactory.

Concepts: Blood, Surgery, Foreskin, Penis, Circumcision, Glans penis, Frenulum of prepuce of penis, Foreskin restoration


Little is known about the long-term implications of neonatal circumcision on the penile sensitivity of adult men, despite recent public policy endorsing the procedure in the United States. The current study assessed penile sensitivity in adult men by comparing peripheral nerve function of the penis across circumcision status.

Concepts: Foreskin, Penis, Circumcision, Glans penis, Frenulum of prepuce of penis, Brit milah, Phimosis, Foreskin restoration


Traditional male circumcision is a deeply entrenched cultural practice in South Africa. In recent times, there have been increasing numbers of botched circumcisions by untrained and unscrupulous practitioners, leading to genital mutilation and often, the need for penile amputation. Hailed as a world’s first, a team of surgeons conducted the first successful penile transplant in Cape Town, South Africa in 2015. Despite the euphoria of this surgical victory, concerns about the use of this costly intervention in a context of severe resource constraints have been raised. In this paper, we explore some of the ethical implications of penile transplants as a clinical and public health response to the adverse consequences of traditional male circumcision. Given the current fiscal deficits in healthcare and public health sectors, how can one justify costly, high-technology interventions for conditions affecting a small section of the population? Since botched traditional male circumcisions are preventable, is a focus on penile transplantation as a form of treatment reasonable? Finally, do such interventions create undue expectations and false hope among a highly vulnerable and stigmatised group of young men? In this paper, we argue that given limited healthcare resources in South Africa and competing healthcare needs, prevention is a more appropriate response to botched traditional circumcisions than penile transplants.

Concepts: HIV, Foreskin, Penis, Circumcision, Glans penis, Frenulum of prepuce of penis, Foreskin restoration, Genital modification and mutilation


Penile coital injuries are one of the suggested mechanisms behind the increased risk of HIV among uncircumcised men. We evaluated the prevalence and correlates of self-reported penile coital injuries in a longitudinal community-based cohort of young (18-24 years old), newly circumcised and uncircumcised men in Western Kenya.

Concepts: HIV, Foreskin, Penis, Circumcision, Glans penis, Masturbation, Frenulum of prepuce of penis, Foreskin restoration


As countries scale up adult voluntary medical male circumcision (VMMC) for HIV prevention, they are looking ahead to long term sustainable strategies, including introduction of early infant male circumcision (EIMC). To address the lack of evidence regarding introduction of EIMC services in sub-Saharan African settings, we conducted a simultaneous, prospective comparison of two models of EIMC service delivery in Homa Bay County, Kenya. In one division a standard delivery package (SDP) was introduced and included health facility-based provision of EIMC services with community engagement for client referral versus in a different division a standard package plus (SDPplus) that included community-delivered EIMC services. Babies 1-60 days old were eligible for EIMC. A representative sample of mothers and fathers of baby boys at 16 health facilities was surveyed. We examined differences between mothers and fathers in the SDP and SDPplus divisions and identified factors associated with EIMC uptake. We report adjusted prevalence ratios (aPR). Of 1660 mothers interviewed, 1501 (89%) gave approval to contact the father, and 1259 fathers (84%) were interviewed. The proportion of babies circumcised was slightly greater in the SDPplus division than the SDP division (27.3% vs 23.7%), but the difference was not significant (p = 0.08). In adjusted analyses, however, the prevalence of babies being circumcised was greater in the SDPplus division (aPR = 1.23, 95% CI:1.04-1.45) and the factors associated with a baby being circumcised were the mother having received information about EIMC (during pregnancy, aPR = 4.81, 95% CI: 2.21-3.42), having discussed circumcision with the father if married or cohabiting (aPR = 5.39, 95% CI: 3.31-8.80) or being single (aPR = 5.67, 95% CI: 3.31-9.69), perceiving herself to be living with HIV (aPR = 1.39, 95% CI: 1.15-1.67), or having a post-secondary education (aPR = 1.33, 95% CI: 1.04-1.69), and the father being Muslim (aPR = 1.85, 95% CI: 1.29-2.65) or circumcised (aPR = 1.34, 95% CI: 1.13-1.59). The median age of 2117 babies circumcised was 8 days (IQR: 1-36), and the median weight was 3.6 kg (IQR: 3.2-4.4). There were 6 moderate adverse events (AEs) (0.28%); 5 severe AEs (0.24%), all involving an injury to the glans penis, requiring hospitalization and corrective surgery; and one death probably related to the procedure. There were no AEs among the 365 procedures performed outside health facilities. Information and education campaigns must reach members of the general population, especially men and fathers, who are influential to the EIMC decision. Serious AEs using the Mogen clamp are rare, but do occur and require efficient, reliable emergency back-up. Our results can assist countries considering scale-up of EIMC services for HIV prevention as their adult VMMC programs mature.

Concepts: HIV, Foreskin, Penis, Circumcision, Glans penis, Frenulum of prepuce of penis, Foreskin restoration, Gomco clamp