noun
hallux valgus; bunion
Medical term for the deformity where the big toe angles toward the other toes, often with a bony bump at the base. In everyday language, simply called a bunion.
外反母趾がひどくなると、歩くときに痛みを感じます。
When hallux valgus becomes severe, you feel pain when walking.
母は外反母趾の手術を受けた。
My mother had bunion surgery.