Cusp shoe still can cause mallet state toe or embed armour (toenail just embeds from side in the skin) , cause inflammation, red ache, fester to wait.

• 尖头鞋还会造成槌状趾或嵌甲（趾甲从侧方嵌入皮肤之中），引起炎症、红肿疼痛、化脓等。