颌面部外伤时，异物容易进入造成感染并影响伤口愈合。这些异物一般都可及时发现并取出。外伤致小石块进入下唇并存在半年之久未被注意却属罕见。现将我科收治１例报告如下：患者，男，３１岁。因下唇部红肿２周溢脓１周前来就诊。２周前下唇左下方开始红肿、触痛。１周前... Maxillofacial trauma, foreign body easily lead to infection and affect wound healing. These foreign objects are generally found in time and removed. Small stones into the lower lip trauma and the existence of six months without being noticed is rare. Now we receive 1 case report as follows: Patient, male, 31 years old. Due to the lower lip swelling 2 weeks overflow pus 1 week before treatment. Lower left lower lip 2 weeks ago began to redness, tenderness. 1 week ago ...