Numbness of the lower lip, the skin of the chin, or the gingiva of the lower anterior teeth secondary to various dental diseases is a common manifestation that is largely underappreciated. The association of numb chin syndrome (NCS) with serious disease like metastatic malignancy and systemic conditions is frequent enough to warrant a search for these possible etiologies. In this paper we report a case of NCS that occurred secondary to malignant disease; we discuss our findings with special emphasis on metastatic malignancies leading to NCS, when the survival is only for a few months.