jews traditionally.... literally suck the blood out of baby penis. Here's a little bit about circumcision

Genital Mutilation

Circumcision’s Psychological Damage - https://www.psychologytoday.com/us/blog/moral-landscapes/201501/circumcision-s-psychological-damage - http://archive.is/TA1IF - https://i.imgur.com/vGuTnqz.png - https://files.catbox.moe/06az0m.png

Metzitzah b'peh - https://files.catbox.moe/54ux1j.png - https://i.imgur.com/gHNpeDV.png

City Questions Circumcision Ritual After Baby Dies - http://archive.fo/lrG8M - https://i.imgur.com/AwAQPNo.png - https://files.catbox.moe/ldofju.png

Image of Metzitzah b'peh - https://files.catbox.moe/pm2csz.png - https://i.imgur.com/9iLw8FT.png

WE SUCK OUT, etc. R. Papa said: If a surgeon does not suck [the WOUND], it is dangerous and he is dismissed. It is obvious? Since we desecrate the Sabbath for it, it is dangerous? — You might say that this blood is stored up, therefore he informs us that it is the result of a wound, and it is like a bandage and cummin: just as when one does not apply a bandage and cummin there is danger, so here too if one does not do it there is danger. - http://www.come-and-hear.com/shabbath/shabbath_133.html - https://www.sefaria.org/Shabbat.133b?lang=bi

The ancient method of performing metzitzah—metzitzah b'peh, or oral suction—has become controversial. The process has the mohel place his mouth directly on the circumcision wound to draw blood away from the cut - https://en.wikipedia.org/wiki/Brit_milah#Metzitzah - http://archive.is/Z1rzi

Under Jewish law, a mohel must draw blood from the circumcision wound. Most mohels do it by hand with a suction device, but some Orthodox groups use their mouth to draw blood after cutting the foreskin. - https://en.wikipedia.org/wiki/Mohel - http://archive.is/JL4gb