The different types of glossectomy describe how much tongue tissue is removed. In a commonly used four-category system, a partial glossectomy removes less than half of the tongue, while a hemiglossectomy removes approximately half. The exact area depends on the tumour’s position and the tissue needed around it for safe removal. A subtotal glossectomy removes more than half but less than the entire tongue. A total glossectomy removes the whole tongue, including its base. Larger operations may require reconstruction using tissue from another part of the body. However, glossectomy classification is not identical across all sources. Some systems describe specific muscles and whether the tongue base is preserved, rather than using percentages alone. Your surgeon’s explanation of what will be removed and what will remain is therefore essential. Conclusion: 'Partial' means a smaller portion, 'hemi' means half, 'subtotal' means most, and 'total' means the whole tongue in this system. Confirm the exact extent and reconstruction plan with your surgeon.