onychorrhexis

例句：

1. 1. The patient hada painful nail that was causing him discomfort.
   患者有一个疼痛的指甲，让他感到不舒服。
2. 2. The doctorperformed an onychorrhexis to remove the infected nail.
   医生进行了一次甲剥离术，以去除感染的指甲。
3. 3. The nail was sodamaged that it had to be removed completely.
   这个指甲太严重了，不得不完全切除。