1. Is a bunion just extra bone?
No. The prominence usually results mainly from the first metatarsal drifting inward while the big toe moves toward the lesser toes. Rotation, sesamoid displacement and joint alignment may also contribute. Simply shaving the bump does not reliably correct the underlying deformity.
2. Why do bunions run in families?
People can inherit foot shape, ligament characteristics and mechanics that make hallux valgus more likely. The bunion itself is not inherited as a single simple trait, and family members may develop different severities.
3. Are tight shoes the cause of bunions?
Tight or pointed shoes can aggravate pressure and symptoms and may contribute to progression in a susceptible foot, but footwear is rarely the only cause. Many people wear narrow shoes without developing bunions, while others develop bunions despite sensible footwear.