Coix seed, also known as Job's tears, yiyi ren, yimi, wugu mi, huihui mi, etc., is an annual gramineous plant. It contains several therapeutic ingredients such as coixenolide, coix seed oil, coixenone, sitosterol, and alkaloids. Pharmacological studies have shown that coixenolide not only has nourishing effects but can also inhibit the proliferation of Ehrlich ascites carcinoma cells, enhance adrenal cortical function, and increase white blood cells and platelets. It is an ideal anti-cancer health ingredient that can be used to treat various cancers such as stomach cancer and cervical cancer. Animal experiments have also found that coixenolide can inhibit the growth of cancer cells, and Job's tears can promote cellular and humoral immunity. Job's tears, with its anti-tumor properties and its suitability as a dietary therapy for lung cancer with phlegm-heat and dampness, is quite appropriate. Because Job's tears has a certain inhibitory effect on abnormal cell proliferation, it can also be used as one of the therapeutic methods for treating colorectal polyps and gastric polyps.