• Around half of all people will have a cancer diagnosis at some stage in their life, most commonly in their later years.
• Cancer that is confined to its original location is easiest to treat, but cancer cells can break off and spread to other parts of the body.
• Scientists studying how cancers spread have found that aspirin may help prevent metastases, or secondary tumors, by boosting the body’s immune response.
• In their mouse study, aspirin helped immune cells to destroy spreading cancer cells.
• Research is underway in people to investigate whether aspirin, or drugs that target the same pathway, could be used to help stop or delay the return of cancers.

https://www.medicalnewstoday.com/articles/aspirin-may-prevent-cancer-metastasis-by-boosting-immune-response