1. Cancers of the penis. Communities that circumcise children in their early childhood like the Israelis hardly have incidences of cancers of the penis, while communities that circumcise much later in life or not at all have the highest incidences of penile cancers.
2. Enlargement of the penis. There is nothing so far scientifically proven to enlarge the penis. It is all a myth. It is not even necessary. According to the women we have talked to, it does not have to be a certain size for women to enjoy sex. The adage that says it is not about the size, it is how you use it is true.