Are you trying to bully me here? Look it up. I’ve heard of this thing, I think it’s called the “Internet web” (odd title, but there you go….).
It’s not “can’t nurse” but that the babies become “disinterested in nursing” after they’re cut. If you were happily nursing your baby right after he was born, then they came and took him away and cut his penis and brought him back like nothing happened, and his attitude was different, like he was unhappy, and wasn’t nursing well anymore, how would you describe that? Would you think that was nothing? Again, it’s out there, there are anecdotal descriptions of this, and if you can’t find it then you’re not trying very hard.
Are you referring to my reference to cases of babies who stop nursing after being circumcised? Look it up. They have a thing called Google. This would be under the aegis of “anecdotal evidence.” I don’t know if there are studies citing the rate at which nursing becomes poorer (how do you measure that? It’s possible, but think about it) after the baby boy has his penis cut. But there are apparently reports of mothers who say this is so. The baby boy feels “unsafe,” like his mother has “betrayed him,” such like that (all true, of course). The baby boy is taken away from his parents (though I have one friend who held his baby’s hand while his foreskin was cut off and he was crying) and is strapped down and subjected to an excruciating surgical procedure without pain-killers and then taken and handed back to his mother as if nothing happened. And of course we have an open, bleeding wound to deal with after that, even if things go well, cloth tends to get stuck in the scabbing, etc. Anyway, that’s one idea towards explaining this phenomenon, and I don’t know how widespread it is. I’m not your personal researcher. If you’re so curious, look it up — there’s plenty of information around, I’d be surprised if you can’t find anything. Living with Kryptonite: 漫画 Meet Dr. Quack! (living-with-kryptonite.blogspot.com)