English-Chinese/Mouth ulcer

A mouth ulcer is an ulcer that occurs on the mucous membrane of the oral cavity. Mouth ulcers are very common, occurring in association with many diseases and by many different mechanisms, but usually there is no serious underlying cause.

口腔溃疡 是 发生 在 口腔 粘膜上的 溃疡. 口腔溃疡 非常 常见，与 许多 疾病 和 许多 不同的 机能 有关，但 通常 没有 严重的 根本 原因.