It could be due to Sakura's feelings for Sasuke. If she's overly focused on Sasuke and Naruto gets in the way of her plans regarding Sasuke in some way, she might lash out and hurt Naruto without really meaning to cause serious harm.
If Naruto gets hurt by Sakura, their relationship could become strained. Naruto might be confused and hurt, both physically and emotionally. He might start to avoid Sakura at first.
In the fanfic, it might be set in an alternate universe where Sakura has a different personality. She could be more aggressive and competitive with Naruto. During a sparring match, she goes too far and seriously hurts Naruto. This could then be the starting point of a story about Naruto having to forgive her and them rebuilding their friendship.
In many SasuSaku fanfics where Sakura gets hurt, it often leads to Sasuke becoming extremely protective. He might go on a rampage against those who hurt her. For example, in some stories, if Sakura is injured during a battle, Sasuke will use his powerful jutsu to defeat the enemy without mercy. It's a way to show his deep - seated feelings for her that he might not always openly express.
I like 'The Comfort After the Storm'. This fanfic focuses on Sakura dealing with Naruto's emotional pain after he loses a very important person. Sakura is there for him, and they have some really heart - to - heart conversations. It shows how their relationship can be so much more than just teammates.
In some Sasunaru fanfictions, Sakura might hurt Naruto emotionally. For example, if she chooses Sasuke over Naruto in a very cruel way, it can break Naruto's heart. She could say mean things about his dreams or his past as an orphan, which would deeply wound him.
There might be. The Naruto fan community is vast and diverse. Fanfic writers sometimes like to create alternative storylines for various reasons. Maybe they want to explore different character dynamics or add some drama. But this kind of plot goes against the typical perception of Sakura's character in the original Naruto story.
A great 'Naruto x Sakura hurt' fanfiction is 'Scarred Hearts'. Here, Sakura gets injured during a mission and Naruto blames himself for not being able to protect her, which causes a rift between them as Sakura doesn't want Naruto to feel guilty. Another one is 'Torn Apart' where outside forces try to break Naruto and Sakura's bond, leading to a lot of emotional pain for both of them. There's also 'Shattered Dreams' which delves into the idea of Sakura's dreams being crushed by Naruto's actions, causing her great distress.
Character development. A good fanfic in this genre should show how Naruto and Sakura grow from the hurt they experience. For example, if Naruto is physically hurt, it could lead to him becoming more cautious or Sakura learning new medical techniques to better protect him.
No. Most Naruto fanfics tend to focus on positive relationships, growth of characters, and adventures within the Naruto universe. A plot where Sakura kills Naruto goes against the general themes of friendship and camaraderie that are central to the Naruto series, so it's not very common.