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  • Stage 1 : It is an advanced stage of oral cancer, and cancer has spread to nearby tissues, large lymph nodes, or distant body parts, such as the lungs.
  • Stage 2 : It is the early stage of oral cancer. The tumor is less than 2 cm and is limited to the oral cavity.
  • Stage 3 : The tumor is more than 2 cm but less than 4 cm. The tumor has not spread to the lymph nodes.
  • Stage 4 : The tumor is larger than 4 cm or has spread to the lymph nodes.