Cryosurgery:ablation of undesired tissues Tumor(benign or malignant) wart,acne scars（疣，瘤，痣，粉刺) cysts(囊肿) Others• Cryosurgery: ablation of undesired tissues – Tumor( benign or malignant) – wart, acne scars（疣，瘤，痣, 粉刺) – cysts (囊肿） – Others