what happened to suguru geto head

According to the search results, Suguru Geto was killed by Gojo Satoru after he attacked the Tokyo Jujutsu Tech school. Gojo chose not to have Getos body taken in by Jujutsu High, which allowed an unknown party to place their brain into Getos body. This brain belonged to an ancient sorcerer named Kenjaku, who transplanted his brain with Getos after Getos defeat at the hands of Yuta Okkotsu. Therefore, the Geto we see in the anime is not the real Geto, but a body possessed by Kenjakus brain. The stitches on Getos forehead are a scar that acts as a Binding Vow and do not heal.