Even that is debated among some. They say that either the circumcision done commonly today cuts off more than was was done previously - meaning that what is cut off is excessive, or that the use of anti-bacterial soaps has robed the area under the foreskin from protective "good" bacteria and thus allowed the "bad" bacteria to thrive. These ones would claim that it is our dependance on certain kinds of soaps that have made circumcision healthier.
This however is not a doctrinal matter. Are we lacking love if we forgo circumcision? Is it even needed with right type of education? Is the boy/man going to be made fun of excessively for being different in the community he lives in? Again these are personal matters for which we should not be judgmental about.
No, not if a man practices good hygiene. There are other ways of assuring that a man keeps himself clean. Foremost among those ways is to not whore around. And next would be always washing his hands before he touches himself. All of that shows love for his wife. But even if a man is single he should practice being clean and then if he does marry his wife will be safe to depend upon him being consistently clean.
And then there is washing hands after a man touches himself which shows love for others, including for any children he may have. I mean think about a man who goes to the bathroom touching himself and then afterward having not washed his hands his little child approaches him and he caresses their cheek or their hair with his hands. Thus a truly loving man will wash his hands both before and after he has had to touch himself.
As far as bacterial soaps go, yes, they are finding they have been wrong about that. And most research shows that most any soap in a modest amount will do the job so long as one rinses thoroughly afterward. The rinsing is actually what carries away the viruses and the bacteria and washes them down the drain. All the soap does is cut the surface layer of oil so that the water can get at the viruses or the bacteria and sweep it away. So long as it is stuck in the skins oil the water rolls right over it.
But none of that would make it wrong for a man to choose to be circumcised. It is only wrong when a man equates it with what is necessary to please God and so forces that idea upon others. Why? Because circumcision was a mere picture of our need to remove the foreskin of our heart and be willing to listen so as to understand God and do as God would have us do. But to push a law on others or even to engage only for our self using that reason when he has set aside in favor of the spiritual things it pictured is like not obeying God. And so that would be the opposite of what circumcision pictured. For by not listening so as to understand a person demonstrates that they have not removed the callousness (foreskin) from off the heart. And the removal of that foreskin is critical to preparing the way of Jehovah in our heart.
Isaiah 40:3 "The voice of him that crieth in the wilderness, Prepare ye the way of the Jehovah, make straight in the desert a highway for our God." Mark 1:3 "The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight." Yes, that is about preparing our hearts to be able to receive.
Deuteronomy 10:16 "Circumcise therefore the foreskin of your heart, and be no more stiffnecked."