Mangekyou Sharingan is the only known KKG to cause self harm

[super michael]

As the title says there are many KKG, but the only KKG which is harmful to the user is the Mangekyou Sharingan.

When someone gains the MS the user starts going blind, when the user use MS jutsu the eye gets blind faster. I think it was kind stupid to make a KKG harm the user, no one has this problem.

The only known cure to heal eye sight are these:

1st Transplant brother/sister eyes to get EMS
2nd Getting Hashirama DNA, proof is Obito he spammed his MS no blindness, while Kakashi got blind while he spammed way less

 

[Urda]

It's the most powerful Doujutsu Kekkei Genkai form of the Sharingan. Without drawbacks, Sasuke and Itachi would spam to their hearts content.

 

[Umari Senju]

It's the most powerful Doujutsu Kekkei Genkai form of the Sharingan. Without drawbacks, Sasuke and Itachi would spam to their hearts content.

This^ they had to nerf it or no Uchiha would ever loose

 

[Arian]

the physical harm appareantly never was an evolutionary disadvantage, so it never vanished by selection. kinda like how our spines or knees or prostates are "broken" and do us harm and are far from perfect, yet they exist in the form they do.

 

[LoZelda101]

yeah, the same applies to cloak tails. self infliction unless they master their bijuu.

 

[adeshina365]

That tends to come with such power...

 

[Frois]

Technically, it isn't the only KG to cause self harm if you are counting the forbidden jutsu of the different abilities.

 

[super michael]

yeah, the same applies to cloak tails. self infliction unless they master their bijuu.

Cloak tail is only possible with being a Jinchuriki which is not a KKG.

 

[LoZelda101]

Cloak tail is only possible with being a Jinchuriki which is not a KKG.

No shit

 

[Dantee]

No shit

Man I love that sig brings back Hunter X Hunter memories

 

[Jhin]

The Kurama clan filler KG caused self harm.

 

[super michael]

I guess only Uchiha are the only one who gets KKG which permanently harms them. Hashirama got a KKG but no drawbacks, Haku the same, Jinton user same, etc.

So many KKG with no drawbacks yet Uchiha are the only one with drawbacks to their KKG.

Mangekyou Sharingan = Permanent blindness
Izanami = Permanent blindness
Izanagi = Permanent blindness