He learns that her blood synthesizes gamma radiation differently than his. They both share a rare combination of genetic factors that even allow gamma radiation synthesizing, but Bruce is surprised to learn that She-Hulk's is unique. He is able to use these findings to heal Smart Hulk's arm fully.
For heroes and villains who have sent attacks powerful enough to pierce his incredible durability, Hulk's healing factor has allowed him to recover from the most serious, crippling injuries. For example, Hulk's regenerative helped him survive being cut into pieces and from being melted down to his bones.
Like Deadpool and Wolverine – but way less publicized – the Hulk has the ability to grow entirely new tissue and heal from most wounds in just seconds. Severe wounds as well – including the near-complete destruction of his body mass – are also no match for the healing abilities of the Hulk.
However, his arm was still damaged, requiring the sling Banner sported in Shang-Chi. Unlike when he was Smart Hulk, in human form the arm started slowly repairing itself. So, he kept wearing the device -- which prevented him from Hulking out. This is how blood from his wounds contaminates Jen after the accident.
Hulk's Endgame Snap Was Meant To Permanently Damage Him
Smart Hulk's snap was supposed to permanently damage him, as the creative team behind Avengers: Endgame confirmed this was their intention. After all, the same power killed Tony Stark, so Smart Hulk having a permanent reminder of his heroic act was understandable.
When Did Hulk's Arm Heal? Shang-Chi, She-Hulk & Endgame Timeline Explained!
Can the Hulk be cured?
there is no way to fully “cure” Banner from Hulk. Yes, nanites can split Hulk from Banner but there is no way to completely remove Hulk from society without killing him(Hulk).
The simple answer is no. Yes, Hulk absolutely smashes Thor to the ground with Mjolnir, but, he's holding both Thor and the hammer. Hulk wouldn't have been able to lift Mjolnir by himself, but since the God of Thunder had a firm grip on it as well, he was able to use it as a weapon against his teammate.
While the Hulk was easily able to survive the barrage of nuclear weapons, the noise of the explosions and cries of dying people eventually came to bother him. The Hulk returned to his birthplace in New Mexico and sealed himself in a cave with a massive boulder, trapping Banner inside with him for many years.
The Hulk has one of the most powerful healing factors in the Marvel Universe, but his regenerative powers have an incredibly dangerous flaw. Most other characters with healing factors like Wolverine and Deadpool will always heal back in the same way, as their bodies rapidly repair damage.
Thanos and Hulk have clashed several times in Marvel lore, with Thanos even admitting he was scared to face the Hulk before acquiring the Infinity Stones. While Thanos is usually the victor, it's generally down to him using superior tactics and technology, rather than simply possessing greater physical strength.
One idea is that the creation of Professor Hulk let Bruce's intelligence inject more humanity into the Hulk. As a result, his rage was tempered enough to affect his strength. That being said, the traditional version of the Hulk wasn't without his humanity.
So while the MCU's Hulk may never go back to being angry the same way he was before, Bruce has a new set of personal demons to deal with that can have lasting repercussions on the MCU.
In Marvel Comics' Ultimate Universe, it turns out that the bad guys created a pair of gauntlets with eight Infinity Gems. And the Hulk was powerful enough to wear both of them and beat his former teammates senseless!
Did Hulk bring everyone back when he snapped his fingers?
Hulk's snap was different, and arguably more difficult. He was bringing everyone back and also trying to break the power of the Soul Stone. That's enough to tear up anyone.
The only reason Wolverine can go up against the Hulk is that Hulk cannot break the coating on Logan's bones. Okay, so, no, the Hulk can't break it or bend it.
While Hulk can be susceptible to magic and energy attacks, Thor has a higher level of durability against them. Thor can still be harmed if the right amount of force is applied; he is not invulnerable to all attacks. However, he has survived energy blasts from Celestials and from Odin himself.
Readers witnessed Wade Wilson's rapid regeneration abilities and Rogue's absorption powers work together at an unbelievable level, saving Rogue's life – and proving Deadpool can survive a nuclear blast.
There's no question the Hulk is a near-indestructible force who comes out on top in almost all of his battles of pure strength. However, against Superman, he's outmatched. While Hulk's strength might rival that of the Man of Steel, Superman's other abilities give him a considerable edge against his opponent.
It's important to note that the rules around worthiness had been temporarily suspended to allow this to happen. As soon as the fight was over, Superman couldn't lift the hammer anymore. However, under normal circumstances, without any weird interference, Superman is worthy of Mjolnir.
Due to the gamma radiation that birthed him, his skin is nearly indestructible and takes massive force to break. Throughout Hulk's many on-screen fights, he has only bled twice, and both circumstances prove it takes a unique set of variables to accomplish that.
The Immortal Hulk series has established that the Hulk is functionally immortal, and he can survive even after Banner dies, which is exactly what scares the scientist.
The Hulk, as he has been portrayed through most of his publication history, can be killed by someone with enough power to either overload his regeneration or simply wish him out of existence if they are powerful reality warpers (Hulk does have some resistance to reality warping) or if someone has a powerful artifact ...
