Americans circumcise their newborn sons for a mix of medical, cultural, and social reasons that together make the United States an outlier among Western nations. Nearly 80% of American men are circumcised, compared to rates in most European countries where nonreligious circumcision is almost unheard of. But the practice is gradually declining: a Johns Hopkins study tracking over 1.5 million hospitalizations found that newborn circumcision dropped from 54.1% to 49.3% between 2012 and 2022.
The Father Factor and Social Norms
The single strongest predictor of whether an American baby boy will be circumcised is whether his father was circumcised. Research has found this association to be overwhelming, with a statistical significance of p < .0001. Parents who choose circumcision also cite concerns about their son's self-concept and how he'll be perceived by peers. In practical terms, many American families circumcise because it feels normal, not because they've weighed the medical literature.
This self-reinforcing cycle is the core reason circumcision persists in the U.S. at rates far above those in comparable countries. The United Kingdom saw circumcision rates fall rapidly in the 1950s, New Zealand in the 1960s, and Canada in the 1990s. In each case, once the cultural expectation broke, rates dropped quickly. Researchers have described the American circumcision decision as a cultural ritual rather than the result of medical understanding among parents.
What Medical Organizations Actually Say
The American Academy of Pediatrics released its most influential policy statement in 2012, concluding that the health benefits of newborn circumcision outweigh the risks, but not by enough to recommend it universally. The AAP identified specific benefits: lower risk of urinary tract infections in the first year of life, reduced transmission of HIV and other sexually transmitted infections, and lower rates of penile cancer. Their position is that the decision should be left to parents, with guidance from their pediatrician.
The CDC supported this position and went further in its own review. Three randomized clinical trials, conducted between 2005 and 2010, found that adult male circumcision reduced HIV infection risk by 50 to 60% during heterosexual sex. Those trials also showed a roughly 30% reduction in the risk of acquiring herpes and the strains of HPV linked to genital cancers. The CDC recommended that healthcare providers present these findings to parents, while acknowledging that social, cultural, ethical, and religious factors all play a role in the decision.
It’s worth noting that most of the HIV data comes from studies conducted in sub-Saharan Africa, where HIV transmission dynamics differ from those in the U.S. CDC modeling estimated circumcision could reduce heterosexual HIV risk by about 21% in African American men and 12% in Hispanic men. For men who have sex with men, circumcision has not been proven to reduce HIV risk during anal sex.
UTI and Cancer Risk Reduction
Urinary tract infections in infant boys are uncommon overall, but circumcision substantially lowers the already-small risk. Circumcised boys have roughly 75% fewer UTIs in their first year compared to uncircumcised boys. Since UTIs in infants can lead to kidney infections and hospitalization, this is one of the more concrete near-term benefits.
Penile cancer is rare in the U.S., affecting roughly 1 in 100,000 men annually. But circumcision in childhood or adolescence cuts the risk of invasive penile cancer by about two-thirds. Interestingly, circumcision performed in adulthood does not show the same protective effect and may even be associated with higher risk, possibly because adult circumcision is sometimes performed in response to conditions like phimosis that themselves raise cancer risk.
How Safe Is the Procedure?
Newborn circumcision carries a low complication rate. A large study covering U.S. medical settings from 2001 to 2010 found that adverse events occurred in about 0.4% of infant circumcisions. The most common issue is minor bleeding, which happens in roughly 1 in 670 procedures. Infection is extremely rare, occurring in about 1 in 74,000 infant circumcisions. Serious complications exist but are vanishingly uncommon. For adults, complication rates are meaningfully higher, ranging from 0.9% to 8.8%.
Insurance, Income, and Access
Whether circumcision is covered by insurance plays a measurable role in American rates. Around 16 states have dropped Medicaid coverage for the procedure, and in those states, circumcision rates among lower-income families are noticeably lower. The Johns Hopkins study found that families in the highest-income ZIP codes and those with private insurance had the highest circumcision rates overall, though those same groups also saw the largest declines over the past decade, dropping from 64.2% to 56.3% among privately insured families.
Racial and ethnic patterns also stand out. White newborn circumcision rates fell from 65.3% to 60.0% between 2012 and 2022. Black circumcision rates remained stable at around 65%, while Hispanic rates held steady at about 21%. These differences reflect a combination of cultural norms, religious practices, and insurance access rather than any difference in medical recommendation.
Why the U.S. Is Different
Circumcision became widespread in the English-speaking world during the late 1800s, initially promoted as a hygiene measure. Britain’s National Health Service stopped covering it in 1949, and rates collapsed within a generation. The U.S. never had that single policy shift. Instead, private insurance continued covering the procedure, the medical establishment offered cautiously supportive statements, and the cultural expectation persisted through decades of fathers wanting their sons to look like them.
The result is that American circumcision sits at the intersection of genuine (if modest) health benefits, deep cultural momentum, and a healthcare system that mostly still pays for it. Other developed nations looked at the same medical evidence and concluded the benefits didn’t justify routine circumcision. The U.S. reached a softer conclusion: benefits outweigh risks, but not enough to recommend it for everyone. That ambiguity, combined with strong social norms, has kept rates high even as they slowly trend downward. For the first time in the study period, the national rate has dipped below 50%, suggesting that the cultural consensus may finally be shifting.