什么是鸡眼和老茧？
Corns and calluses are areas of thickened and hard skin (hyperkeratosis) on the body that forms due to pressure and friction. It is most commonly found on the palms of our hands or the soles of our feet. Calluses are generally painless until it becomes very thick where it starts to cause damage to the underlying tissue. Corns, however, are usually painful when pressure is applied and are often misdiagnosed as plantar warts.
It is a myth that corns have “roots” and will resolve when the “roots” are removed. Corns do not have roots and the only effective way to resolve corns is by reducing the amount of friction and pressure over the area.
鸡眼和老茧的区别
鸡眼和茧子是由于局部压力和摩擦作用形成的，因此通常出现在足部承重区域，如脚掌前部、脚跟和脚趾处。压力与摩擦会刺激皮肤细胞过度增生，形成厚实的角质层。除非压力和摩擦得到缓解，否则这种增生过程不会停止。
鸡眼和老茧在其体征和症状方面有明显的差异。
鸡眼：
- 局部区域的皮肤增厚
- 通常无痛，除非下面的组织受损
- 施加压力时没有尖锐的针刺感
老茧：
- 可能形成或不形成硬皮区域
- 在皮肤深处有一个中央的增厚皮肤“核心”
- 施加压力时有疼痛的针刺感
新加坡鸡眼和老茧治疗
The key to managing corns and calluses is to reduce the amount of pressure and friction over the affected area. Shaving or debridement only provides temporary relief for weeks before they grow back again.
新加坡治疗鸡眼和老茧的方案包括：
- 刮除或清创术以缓解疼痛
- 更换鞋子
- 定制衬垫以提供缓冲
- 定制足部矫形器，用于重新分配足底压力
- 对于由严重足部畸形引起的病例，可能需要进行手术重建或肌腱松解
Corn plasters or topical salicylic acid ointments do not cure corns and calluses and should be avoided, especially for patients with diabetic foot complications. Excessive use of corn plasters can result in acid burns and infections.
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