Dunno. It's like cultivation, but medical lmao. None of it's believable even to a complete outsider to medical field. You can tell it's written by someone who doesn't know much and didn't bother researching. Blood oxygen 0% and making full recovery? Who you kidding? Lol. Suggesting removing entire organs at the littlest conditions is just absurd too.
Either ways tho, it's enjoyable. Nothing wrong with cultivation or OP MCs, as long as it's executed well enough and you don't take it seriously. It's actually a nice bit of fresh air from the hard core medical mangas. No need to think, it's just an OP MC doing OP stuff with plot armour.