Can be due to tooth related issues she might be eating less Can be multifactorial U need to visit a physician or an oncologist for detailed QA

Hello , Your mother had a relatively small weight loss only , when compared to what we call significant weight loss while considering cancers. But as my colleagues also have already explained , there could be many causes for weight loss other than a cancer . For advising her regarding what further steps need to be taken we need more details about her weight loss and any other symptoms she is having

She lost weight intentional or unintentional we need to check. There are multiple reasons for weight loss not only cancer.