Most inflammatory diseases do not progress to cancer, and the few inflammatory lesions that do progress to cancer usually go through atypical hyperplasia, precancerous lesions, and finally to cancer. Inflammation itself is a kind of benign lesion, the main manifestations of inflammation are redness, swelling, heat and pain, and the inflammation will disappear mainly through one’s own resistance or through the use of antimicrobial treatment. If there is no timely treatment, poor body resistance, or improper use of drugs, it may develop into chronic inflammation, resulting in repeated proliferation of the inflammation site, atypical hyperplasia, pre-cancerous lesions, and finally may develop into cancer. For example, chronic gastritis, viral hepatitis, tuberculosis, etc. may be in the stage of chronic inflammation for a long time, and do not develop into cancer throughout life. However, a small percentage may develop into cancer. Cancer is not always transformed from inflammation. It is possible that normal cell growth is out of control, causing unlimited cell division and leading to cancer. Attention should be paid to regular medical checkups for early detection of lesions and early therapeutic intervention.