Frontal osteoma is mostly a benign cranial tumor of the frontal bone. If it grows slowly or does not increase in size, it can be left untreated and continue to be observed; if there is a significant increase, or if it affects the patient’s facial appearance and psychological comfort, surgical resection can also be considered. The etiology of frontal bone osteoma is still not fully clarified, and most of them are believed to be natural growth, and a few may be related to the history of cranial trauma. Its growth pattern is mostly expansive, and most patients are incidentally found to have a raised mass in the frontal region. On examination, it is seen to be hard, with a smooth surface, no mobility, and no obvious pressure pain. Frontal bone osteomas, although mostly benign tumors, are recommended to consult a local neurosurgeon for specific disposition options.