Nikki Bella is one of the many wrestlers that hard to retire early due to neck injuries. She is John Cena’s former girlfriend and was one of the top female wrestlers in the WWE. Both Nikki and Brie Bella had to retire and they announced their retirement on an episode of Total Bellas.
Nikki and Brie spoke about Nikki’s health on a recent episode of The Bellas podcast. Nikki revealed what the doctor told her before she was set to return after WrestleMania 35. "He was just like, 'Nikki, I want you to know that why you're feeling the way you do is because you have so much inflammation around the metal in your neck.
And on top of that, you have herniated the disc above where you've had surgery. It's fully herniated. And on top of that, I've found a cyst on your brain. Now, by looking at it, I don't think it's anything we need to worry about right now but we need to check on this every year...
You're done. I'm so sorry, but if you get back in that ring - you're either paralyzed or you're light's out for good. You can't mess with this anymore.' " Nikki could have ended up paralyzed forever had she forced herself to fight in the ring again. Most WWE stars usually fight through the pain, but they end up confined to a wheel chair.