Is circumcision actually healthy or too much of a sacrifice?

Depends who you ask: Circumcision dramatically reduces the chances that a man will ever get cancer of the penis. It is generally easier to keep the penis clean after circumcision. Other think that it may reduce sensation. If done as an infant without local it appears to be very painful. If done with local perhaps not. Religious reasons also get into the argument. No easy clear cut answer.

Yes, recent data: Circumcision is the surgical removal of the foreskin, a small flap of skin that covers the tip of the penis, generally performed in the days after birth. Examination of scientific studies between 1995 and now shows links between circumcision and decreased risks for urinary tract infections, some kinds of cancer, hpv, hiv, and other sexually transmitted diseases. There is a preventative effect.