It is a part of our covenant with HaShem, the creator.
They copied the custom from the ancient Egyptians Who used it as a way of differentiating themselves from the lower class plebs. Religion can be used and has been throughout society to convince people to abuse them selves and each other. Jewish circumcision is easier to maintain because it is done to children and very rarely to adults.
Only among Greek Jews.
Australian Aboriginal have circumcision rights as do Australian Jews and Muslims the practice of selective circumcision as practiced in English speaking country's since the Victorian era is rapidly diminishing and is being actively discouraged by the Australian medical fraternity.
Circumcision is very rarely practiced in Holland. Probably less than 1% of the men in Holland are circumcised. Of those that are nearly all are Muslims or Jews. who have taken the practice of male genital mutilation with them from the middle east.
In general, modern Jews still believe and practice circumcision.
Nothing. There is no medical reason for circumcision, and the vast majority of men in the world are not circumcised. Circumcision is practiced by some ethnic and religious groups including by Jews and in certain sects of Islam. However, most other religions, including Christianity, Hinduism, and Buddhism, do not practice circumcision.
In some parts of Africa and Asia.
they practiced circumcision on both boy and girl to ensure that their successful passage into adulthood. According to Muslim religion female circumcision is forbidden.
There aren't any.
Italian Jews get circumcised.
It is called 'circumcision'. Circumcision for males is compulsory per Islam religion (and also Judaism and Christianity) and is practiced since prophet Abraham life when he was commanded by God to perform circumcision for his sons. However, religion doesn't call for female circumcision although it may be practiced in some communities per local traditions and cultures.
Traditionally it involves removal of the clitoris and labia although the tradition can vary widely in exactly how it is practiced.
The Jews of Rome practiced their own religion, laws and traditions like they had always done.