Circumcision

Circumcision is a surgical procedure that removes the foreskin from the human penis. In the most common form of the operation, the foreskin is extended with forceps, then a circumcision device may be placed, after which the foreskin is excised. Topical or locally injected anesthesia is generally used to reduce pain and physiologic stress. Circumcision is generally electively performed, most commonly done as a form of preventive healthcare, as a religious obligation, or as a cultural practice. It is also an option for cases of phimosis, chronic urinary tract infections (UTIs), and other pathologies of the penis that do not resolve with other treatments. The procedure is contraindicated in cases of certain genital structure abnormalities or poor general health.

The procedure is associated with reduced rates of sexually transmitted infections and urinary tract infections. This includes reducing the incidence of cancer-causing forms of human papillomavirus (HPV) and reducing HIV transmission among heterosexual men in high-risk populations by up to 60%; its prophylactic efficacy against HIV transmission in the developed world or among men who have sex with men is debated. Neonatal circumcision decreases the risk of penile cancer. Complication rates increase significantly with age. Bleeding, infection, and the removal of either too much or too little foreskin are the most common acute complications, while meatal stenosis is the most common long-term. There are various cultural, social, legal, and ethical views on circumcision. Major medical organizations hold variant views on the strength of circumcision's prophylactic efficacy in developed countries. Some medical organizations take the position that it carries prophylactic health benefits which outweigh the risks, while other medical organizations generally hold the belief that in these situations its medical benefits are not sufficient to justify it.

Circumcision is one of the world's most common and oldest medical procedures. Prophylactic usage originated in England during the 1850s and has since spread globally, becoming predominately established as a way to prevent sexually transmitted infections. Beyond use as a prophylactic or treatment option in healthcare, circumcision plays a major role in many of the world's cultures and religions, most prominently Judaism and Islam. Circumcision is among the most important commandments in Judaism and considered obligatory for men. In some African and Eastern Christian denominations male circumcision is an established practice, and require that their male members undergo circumcision. It is widespread in the United States, South Korea, Israel, Muslim-majority countries and most of Africa. It is relatively rare for non-religious reasons in parts of Southern Africa, Latin America, Europe, and most of Asia, as well as nowadays in Australia. The origin of circumcision is not known with certainty, but the oldest documentation comes from ancient Egypt.

Approximately half of all circumcisions worldwide are performed for reasons of prophylactic healthcare.

There is a consensus among the world's major medical organizations and in the academic literature that circumcision is an efficacious intervention for HIV prevention in high-risk populations if carried out by medical professionals under safe conditions.

In 2007, the WHO and the Joint United Nations Programme on HIV/AIDS (UNAIDS) stated that they recommended adolescent and adult circumcision as part of a comprehensive program for prevention of HIV transmission in areas with high endemic rates of HIV, as long as the program includes "informed consent, confidentiality, and absence of coercion" — known as voluntary medical male circumcision, or VMMC. In 2010, this was expanded to routine neonatal circumcision, as long as those performing the procedure received assent from the parents of the infant. In 2020, the World Health Organization again concluded that male circumcision is an efficacious intervention for HIV prevention and that the promotion of male circumcision is an essential strategy, in addition to other preventive measures, for the prevention of heterosexually acquired HIV infection in men. Eastern and southern Africa had a particularly low prevalence of circumcised males. This region has a disproportionately high HIV infection rate, with a significant number of those infections stemming from heterosexual transmission. As a result, the promotion of prophylactic circumcision has been a priority intervention in that region since the WHO's 2007 recommendations. The International Antiviral Society–USA also suggests circumcision be discussed with men who have insertive anal sex with men, especially in regions where HIV is common. There is evidence that circumcision is associated with a reduced risk of HIV infection for such men, particularly in low-income countries.

The finding that circumcision significantly reduces female-to-male HIV transmission has prompted medical organizations serving communities affected by endemic HIV/AIDS to promote circumcision as a method of controlling the spread of HIV.

Major medical organizations hold varying positions on the prophylactic efficacy of the elective circumcision of minors in the context of developed countries. Literature on the matter is polarized, with the cost-benefit analysis being highly dependent on the kinds and frequencies of health problems in the population under discussion and how circumcision affects them.