Circumcised means the foreskin, the sleeve of skin that covers the head of the penis, has been surgically removed. It’s one of the most common surgical procedures in the world, performed on roughly 37 to 39 percent of males globally. Some people are circumcised as newborns for cultural or religious reasons, others later in life for medical ones.
What the Foreskin Is and What Gets Removed
The foreskin (also called the prepuce) is a double-layered fold of skin that covers the glans, which is the rounded head of the penis, and the urinary opening at its tip. The inner layer is mucosal tissue packed with sensitive nerve endings. The outer layer is regular skin. In its natural state, the foreskin can slide back and forth over the glans. Researchers believe it serves as protection against friction and plays a role in sexual sensation.
During circumcision, this entire fold of skin is removed, leaving the glans permanently exposed. After healing, the most visible difference is that the head of the penis is uncovered rather than tucked inside a sheath of skin. A circumcised penis also typically has a visible scar line partway down the shaft where the skin was cut.
Why People Get Circumcised
The reasons fall into three broad categories: religious tradition, cultural or personal preference, and medical necessity.
Circumcision is a religious commandment in both Judaism and Islam, making these two traditions the largest drivers of the practice worldwide. In Judaism, circumcision is traditionally performed on the eighth day of life. In Islam, the timing varies by culture but is typically done in childhood. Some Orthodox Christian communities in Africa also practice circumcision as a matter of custom.
In the United States, routine newborn circumcision became widespread in the mid-20th century for reasons that were more cultural than religious. Rates have declined somewhat over the decades but remain higher than in most of Europe, where routine infant circumcision is uncommon outside of religious communities.
For adults, the most common medical reason is phimosis, a condition where the foreskin is too tight to retract over the glans. In a review of 202 adult circumcision cases, phimosis accounted for nearly 47 percent. Other reasons included painful intercourse (about 18 percent) and recurring infections of the glans and foreskin, called balanitis (about 14 percent).
How the Procedure Works
For newborns, circumcision is a brief procedure, usually done within the first few days of life. A local anesthetic numbs the area, and the foreskin is separated from the glans and removed. Three common devices are used, each with a slightly different approach. Two of them, the Gomco and Mogen clamps, work by clamping the foreskin while protecting the glans underneath, then cutting the excess skin away. The third, the Plastibell, takes a different approach: a small plastic ring is tied in place over the foreskin, cutting off blood flow so the tissue falls off on its own over several days.
Adult circumcision is a more involved procedure, typically done under local or general anesthesia. Recovery takes longer, but the complication rate remains low, around 3.5 percent in the study of 202 adult patients.
Health Benefits
Circumcision does carry measurable health advantages, which is why it remains a topic of discussion among medical organizations. The most significant finding comes from HIV research: circumcision reduces the risk of heterosexual men acquiring HIV by 50 to 60 percent, a result that has driven large-scale circumcision programs in parts of sub-Saharan Africa with high HIV rates.
The procedure also reduces the risk of acquiring HPV and herpes simplex virus type 2 by about 30 percent. Since HPV can cause penile cancer, circumcision offers indirect protection there as well, partly through lower HPV transmission and partly by eliminating conditions like chronic phimosis that contribute to cancer risk. Urinary tract infections in infancy drop from about 7 per 1,000 uncircumcised boys to roughly 2 per 1,000 among those who are circumcised.
The American Academy of Pediatrics stated in its 2012 policy (the most recent comprehensive one) that the health benefits of newborn circumcision outweigh the risks, and that the benefits are sufficient to justify insurance coverage for families who choose it. However, the AAP stopped short of recommending routine circumcision for all newborns, leaving the decision to parents after informed discussion with their clinician.
Risks and Complications
Circumcision is considered safe, but like any surgery, it carries risks. In a study of 480 boys (both neonates and older children), about 13 percent experienced some type of complication. Most were minor. Bleeding occurred in about 2 percent of cases, infection in less than 1 percent, and temporary urinary retention in about 1.3 percent.
Late complications were actually more common than early ones, showing up in about 7 percent of cases. These included incomplete removal of foreskin (2.5 percent), skin adhesions where the remaining skin stuck to the glans (1.9 percent), and narrowing of the urinary opening, called meatal stenosis (2.9 percent). Neonates in this study had a higher overall complication rate (about 17 percent) than older boys (about 9 percent), though most issues in both groups resolved without further surgery.
Recovery and Healing
For newborns, the circumcision site typically looks red, swollen, and slightly raw in the days following the procedure. A yellowish film or crust over the area is normal and is part of the healing process, not a sign of infection. The most common source of discomfort is irritation from the diaper or contact with urine. Applying petroleum jelly to the tip of the penis with each diaper change creates a barrier that reduces this irritation. Most newborns heal fully within 7 to 10 days.
Adults should expect a longer recovery. Swelling and sensitivity typically persist for a couple of weeks, and most doctors advise avoiding sexual activity for four to six weeks to allow the surgical site to heal completely.
Circumcised vs. Uncircumcised
The practical, day-to-day differences are modest. A circumcised penis requires no special hygiene beyond normal washing, since the glans is always exposed. An uncircumcised penis requires regular retraction of the foreskin during bathing to clean the area underneath, where a natural lubricant called smegma can accumulate.
The effect on sexual sensation is one of the most debated questions surrounding circumcision. Because the foreskin’s inner layer contains dense nerve endings, some researchers argue that removing it reduces sensitivity. Others point out that the glans itself remains fully intact and that large studies have not found consistent differences in sexual satisfaction between circumcised and uncircumcised men. For most men on either side of the question, sexual function is not meaningfully affected.