Why is Lex Luthor bald?

Kryptonite caused it one continuity but dc changes shit every other month so who knows now.

He's so intelligent that his bulging braincells pushed all the hair out from the inside.

The question isn't "why is he bald?", it's "why is he STILL bald?" He's one of the smartest, richest people on the planet, he could cure baldness in an hour.

an artist's mistake

Probably the same reason his metahuman injections didn't work on him. God hates him.

He has, he cloned himself to have a younger, better body, and he still went bald.

Its a reminder of what he lost, Kinda like how Doom keeps his ground beef face

Best Doom is one that just has a tiny scar because he can't handle the slightest imperfection. Likewise Luthor being bald is best when its just an imperfection instead of some comical supervillain accident. He's human, he went bald. He ages, Superman wont. It all ties in to his primary motivation.

Someone should have told Doom that chicks dig scars.

The problem with tying Luthor too hard to his primary motivation is that at his core he's right, which is dangerous for a super-villain to be.

This is the most hilarious villian origin ever
Whats next? Batman cutting in a traffic line? Wonder woman refusing to leave a tip? Hal Jordan telling a woman she looks fat?

user being petty and green with envy its not a reason to be a villian
He is narcissistic and cant accept the fact he wont surpass someone else no matter how much he tries, he could do so much with his intellect but wastes it using just to prove hiw much better he is than everybody else

Joe Chill killing Batman's parents because they cut in front of him at traffic lights would be kino not gonna lie.

He WOULD be right if Superman was actually as bad as Lex says he is. Sure, there's been a number of Supermen across the multiverse who go down the wrong path, but but in most universes he's good. That whole thing about him setting a standard most men can't reach is true, but Superman is fully aware of it and usually limits himself to dealing with the shit humanity can't overcome on its own, and playing a support role in helping them sort shit out. The average human can't leap tall buildings in a single bound or benchpress cruise ships but when it comes to strength of heart, anyone can be as strong as Superman, and that's what the Man of Steel tries to get people to realize. In most universes, even some of the ones where he's an evil dictator, he genuinely doesn't WANT to rule the world because he can't handle the stress of micromanaging the entire planet.