It is common that foreign bodies remain in the body by accident, and in most cases they could be removed without delay. But the presence of foreign body is often overlooked due to patient's ignorance or lack of physician's eagerness in examination that lead to prolonged stay for subsequential months or years of needless illness and suffering. Recently, we have experienced a case of polyethylene tube lodged in the sublingual gland. The patient was 32-year-old female who had history of submandibular gland sialogram 2 years ago. So, we report on this case with a brief review of literatures.