Here's what nobody tells you before they hand you a surgery brochure.
Your big toe is held in place by two muscles pulling against each other.
On one side, a stabilizing muscle pulls your toe straight and keeps it in line.
On the other side, an opposing muscle pulls it inward, toward your other toes.
When you're young, these muscles are in balance. Your toe sits straight. No bump. No drift.
Then come the years of tight shoes, heels, and boots that squeeze. The muscle pulling your toe inward gets short and tight. The muscle holding it straight gets weak and stretched.
The balance breaks.
So the toe drifts. The joint gets pushed to the side.
That's the bump. Not new bone. Just your joint, out of line.