Fellation and others, linky to the WHO manual on infant circumcision here: whqlibdoc.who.int/publications/2010/9789241500753_eng.pdf
It's 140 pages long, so I'm cutting and pasting for ease of reference:
A WHO expert review meeting on neonatal male circumcision held October 2009 in Geneva Switzerland concluded that the procedure is easier to perform and associated with less pain and fewer complications when performed within the first two months of life.
It also lists the following benefits (footnotes removed):
"Benefits
If infant male circumcision is being performed for reasons other than the treatment of a specific medical problem, the health benefits are primarily preventive and may only be realized long after the procedure has been carried out. Circumcision may reduce the risk of acquiring some infections and related complications but does not guarantee complete protection. Some of these conditions are not as common as others, and the degree of risk may depend on the behaviours of the individual and the community to which he belongs. The benefits of male circumcision include the following.
? Decreased risk of HIV infection ? male circumcision has been proved to help prevent female to male transmission of HIV, reducing the risk of transmission by 60−70%.
? Decreased risk of urinary tract infections ? male circumcision decreases the risk of such infections in infants19 and adult men. Uncircumcised male infants are estimated to have a 1% chance of acquiring a urinary tract infection. This type of infection is 10 times less
common in circumcised male infants, who have an estimated 0.1% chance of developing such an infection.
? Prevention of phimosis ? this condition results from scar tissue that makes a tight opening in the foreskin and prevents exposure of the head of the penis and the normal retraction of the foreskin.
? Prevention of paraphimosis ? this is an extremely rare condition that occurs when the foreskin is pulled back or down and trapped in the retracted position below the glans. The tissue can become swollen and obstruct the blood flow to the tip of the penis, requiring urgent surgery
to correct the problem. Male circumcision can prevent this complication.
? Prevention of balanitis and posthitis ? under certain circumstances, dirt, sand and other irritants can collect under the foreskin and cause inflammation of the glans (balanitis) and foreskin (posthitis). Male circumcision helps to prevent these conditions by making it easier to
keep the head of the penis clear of possible irritants.
? Decreased risk of other sexually transmitted infections ? male circumcision has been shown to help protect against contracting genital herpes simplex virus (HSV) and human papillomavirus (HPV).
? Decreased risk of cancer of the penis, which, in some populations, occurs in 1 per 100 000 people and is much more common in men who are uncircumcised. Male circumcision markedly reduces the risk of developing this type of cancer.
? Decreased risk of cancer of the cervix in female sexual partners ? cervical cancer occurs less commonly in women with male sexual partners who are circumcised. Sex with either uncircumcised men or men circumcised after infancy increases a women?s risk of cervical cancer.
? Decreased vaginal infections caused by Trichomonas vaginalis and decreased bacterial vaginosis in female sexual partners.
Male circumcision provides several medical benefits. In 2007, UNAIDS and WHO concluded that the efficacy of male circumcision in reducing female to male transmission of HIV had been proved beyond reasonable doubt. "
OP, you asked what are the advantages of circumcision. HTH