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To make an Eternal Mangekyo Sharingan, you need to transplant another Mangekyo
Sharingan, right?

Itachi had awakened his Mangekyo Sharingan when Shisui died, and Shisui had
gave his eye to Itachi. So why didn't he transplant that eye and make his
Mangekyo Sharingan eternal?


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naruto
Why didn't Uchiha Itachi get himself the Eternal Mangekyo Sharingan?


[Danzo had stolen one of his
eyes](http://naruto.wikia.com/wiki/Shisui_Uchiha#Personality) before Shisui
could have given it to Itachi. An Eternal Mangekyo Sharingan has never been
created with just one eye; it has always been _pairs_ of eyes.

Also, one other condition for the Eternal Mangekyo Sharingan is that there has
to be very strong blood ties between two people. Itachi and Shisui are both
cousins at best, so the blood tie is weaker than between Itachi and Sasuke,
for instance. It would be unlikely that an Eternal Mangekyo would have formed
from Shisui's single eye.


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Eternal Mangekyou only requires spare eyes. However, to obtain the Mangekyou
you need to be attached to someone, like a sibling/close friend (this explains
why Obito never lost his vision and why Kakashi was able to use the perfect
sussano).

Itachi didn't get the eternal mangekyou because he just didn't want to. He did
not want to take his father's/anyone else's eyes, because maybe he felt very
guilty.


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> There could be a couple reasons: Two plausible ones were mentioned by
> Makoto. As we all know, the Sharingan is a pair Dojutsu and so one would
> need 2 Mangekyou together in order to awaken the Eternal Mangekyou in both
> of their eyes. The other reason was also stated by Makoto, is because it has
> been mentioned that the 2 individuals must be related by blood and it makes
> sense since the only 2 people who have actually ever done this were Sasuke
> and Madara and they used the Mangekyou's of their siblings.

As for the reason why he did not use his father's Mangekyou, it could be
because Itachi knew that he was dying and saw no point in achieving Eternal
Mangekyou, just to die to an incurable sickness. He probably knew he wouldn't
have enough time to reap the benefits of the Eternal Mangekyou. For more info
on his sickness check out this thread; [was it ever stated if Itachi was
already dying?](https://anime.stackexchange.com/questions/48553/was-it-ever-
stated-canonically-that-itachi-was-already-dying-when-he-fought-sasu)

The last reason is what I would call " _ **an overwhelming level of Love mixed
in with a strong guilty conscience**_ ". Itachi wiped out his entire clan to
protect Konoha from the coup that the Uchiha were planning, but couldn't kill
his brother because he loved him more than everything else. Itachi most
definitely knew how terrible his acts were and right from that moment planned
to make amends for it by dying at the hands of his kid brother, who would try
to avenge the entire clan. Itachi most likely also concluded that Sasuke would
have had no chance against him if he had the Eternal Mangekyou, and therefore
decided to really fight his younger brother later on after his eyes had
deteriorated in such a manner that they would be close in strength and not a
one sided battle.

[![enter image description
here](https://i.stack.imgur.com/hvMvZ.jpg)](https://i.stack.imgur.com/hvMvZ.jpg)

So it was actually because of Sasuke! He knew he was dying and preferred to
die at his brothers hand. By doing that, he used his death to make Sasuke
stronger. In order to make the fight a bit fair, Itachi decided to let Sasuke
have the upper hand (by fighting him while he was partially blind and sick).


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The existing answers are incorrect. You cannot get an Eternal Mangekyo
Sharingan just by changing to any other pair of eyes, you can only do so if
those eyes are from a brother (blood related). This was precisely explained.


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