Although Itadori looks and acts like a normal human (normal being subjective here - Itadori Yuji is a silly kid who ate Sukuna's finger), this article will explain whether or not Itadori Yuji is a Death Painting Womb according to information available in the Jujutsu Kaisen
Jujutsu Kaisen (呪術廻戦) is a Japanese manga series written and illustrated by Gege Akutami. It has been serialized in Shueisha's shōnen manga magazine Weekly Shōnen Jump since March 2018, with its chapters collected and published in nineteen tankōbon volumes as of April 2022.
9 Yuji Itadori Is One Of The Nine Cursed Womb Death Paintings. Before Yuji Itadori ever enrolled at Tokyo Jujutsu High school an evil sorcerer by the name of Noritoshi Kamo forced a woman born half-human half-curse to live through 9 pregnancies and 9 terminations.
Even without being fully recovered from his fights during the Shibuya Incident, Choso still deems it appropriate to call Yuji a "Demon God." Though Yuji himself doesn't seem to realize it just yet as he's still bearing the weight of responsibility for what he and Sukuna did during the previous arc.
How many finger did Yuji ate Sukuna now? If you haven't been par with the latest incident in the manga, before Sukuna was awoken in the Shibuya arc, Jogo mentioned that Yuji has consumed 15 fingers, but I believe that Itadori has consumed maybe more and close to 20 fingers already.
Yuji Itadori is Pretty Much Dead - Itadori Parents Unleashed Hell, Sukuna's Human Revival REVEALED!
Why does Sukuna look like Yuji?
While other fans might debate that the reason for this is that Sukuna's soul is inside Yuji so the souls look the same, those who made the theory will reiterate what Mahito said before. If fans can remember, Mahito said that the soul does not dwell in the body, rather, it was the body that connects itself to the soul.
His own cursed technique allows him to take over human bodies, and a flashback has shown that he once possessed Itadori's mother. So he likely performed an experiment on Itadori, either as a fetus or as a baby, that made him superhuman.
"Itadori," is the Japanese word for Fallopia japonica, or Japanese knotweed. It translates to "take away pain," because it was commonly used in traditional medicine. He shares his family name with a healing herb, which serves as a perfect metaphor for his caring nature.
“To put it bluntly, Six Eyes is the eyes that show cursed energy in so much detail. He can even see like a high-resolution thermography when wearing a blindfold. He can even recognize things that don't have cursed energy, such as buildings, through the residue and the flow of the cursed energy.”
To clarify Yuji is a curse / human hybrid, by eating the cursed object “Sukuna's Finger” he gained the properties of a curse and became a vessel for Sukuna's cursed energy. Yuji isn't a natural sorcerer, he has no innate technique of his own.
Henceforth, his remains of 20 indestructible fingers, preserved in grave wax, traversed the ages as cursed objects, ever growing in power. In the present, Sukuna has been incarnated into Yuji Itadori due to the latter eating one of his cursed fingers, which contain his fragmented power.
Choso seemed to explain to himself that Yuji was his younger brother because he still felt the resonance of his brothers' blood within Itadori, and it seems that thanks to Choso's help in the fallout of the Shibiya Incident that Yuji has come around with this idea as well.
Yuji won't be a master of Sukuna's technique either, he'll have to adapt and get used to it. Yuji is only inheriting Sukuna's technique and not Sukuna's skill with that technique. So technically Yuji could attempt to learn reverse cursed technique for healing at any time he wanted to.
It was confirmed during the Death Painting arc that Brain imprisoned a woman and experimented on her to give birth to human-curse hybrids. Fans are convinced Brain moved to a different woman to do something similar, and one of the pregnancies resulted in Yuji.
During the Shibuya Incident Arc, Sukuna took over Yuji's body for their agreed-upon minute. During that minute, wholesale destruction ravaged the city, as Sukuna used his domain expansion to fight one of Megumi's shikigami, Mahoraga.
Ryomen Sukuna is interested in Megumi Fushigoro because of the latter's Ten Shadows Technique. It has been hinted throughout the anime and manga that Sukuna wishes for Megumi to perfect his technique and get Sukuna a body due to his failure of overtaking Itadori's.
Appearance. In his original appearance, Sukuna is described as a demon with four arms and two heads. Currently, he takes the appearance of his host Yuji Itadori, but with spiked hair slightly pushed upfront and with tattoos/lines on his forehead, nose, cheeks, upper body, and abdomen.