Research scholars and medical clinical experts have different views on the relationship between diabetes and tumors. Previous studies have shown that certain tumors are more common in patients with diabetes because head and neck tumors are inherently rare, so little is known about the risk of head and neck tumors (HNC) in diabetic patients. Recent results from a long-term study conducted by Taiwanese scholars and clinical experts suggest that diabetes is significantly associated with an increased risk of HNC and that diabetic patients have a significantly increased risk of oral, oropharyngeal, and nasopharyngeal cancers. The Journal of the American Medical Association? The Journal of Otolaryngology Head and Neck Surgery (JAMA Otolaryngol Head Neck Surg) recently published the results of the study. The study of head and neck tumors in diabetics compared 89,089 newly diagnosed diabetics with subjects without diabetes using a retrospective cohort study, with the two groups matched for comorbidities, sex and age. The patients were evaluated and analyzed at the end of a long follow-up period or until death. The incidence of head and neck tumors was 1.47 times higher in patients with newly diagnosed diabetes. The risk of oral, oropharyngeal and nasopharyngeal cancers was significantly higher in the diabetic group than in the control group. Therefore, diabetics are reminded to be screened for head and neck tumors such as oral cavity, oropharyngeal and nasopharyngeal cancers during their routine annual physical exams.