On 20/02/2021 22:25, Rod Speed wrote:
Fredxx wrote
Rod Speed wrote
Fredxx wrote

snip

Yet, as per a link you provided, "Copper can also alter the
endometrial lining, but studies show that while this alteration can
prevent implantation of a fertilized egg".

But that isnt the primary mode of operation of IUDs.
They prevent fertilisation in the first place.

It's so good you approve their secondary purpose,

It isnt the secondary purpose.

Ok, nth purpose; where 'n' can be any number.

Are you in denial that copper on IUD reduces the probability of a
fertilised embryo implantation?

discouraging implantation.