Cancer affects individuals worldwide. Novel treatments are needed to treat and prevent this deadly disease. Science is studying natural chemicals since they have fewer adverse effects than chemotherapy. Plant secondary metabolites may be used to develop novel anticancer drugs. These compounds, which have become cancer treatments, are advancing the science. Most chemotherapy drugs restrict dose, develop resistance, and are non-selective to normal cells. Making effective cancer treatments is therefore still a clinical challenge. However, plants are rich in naturally occurring chemicals that are physiologically active and may have commercial value or be utilized to generate modified derivatives with increased activity and/or reduced toxicity in cancer treatment. The potential efficacy, accessibility, low cost, lack of toxic side effects, and high use rates of herbal medicines means that they are being seriously considered as anticancer therapy. Science has accelerated. Traditional medicines are safe and effective, hence the WHO recommends them. We reviewed several anticancer herbs.