According to the relevant diagnostic criteria of Chinese and Western medicine and the nutritional risk screening tools for malignant tumors

this article discusses the diagnosis of colorectal cancer

nutritional risk screening and nutritional assessment

the principle and purpose of diet therapy. In addition

in order to offer reasonable and effective dietary nutrition guidance during the perioperative period

radiochemotherapy and maintenance treatment period for patients with colorectal cancer

the article start with the idea of homology of medicine and food as well as simultaneous use of medicine and food

based on the current Chinese diet therapy in the treatment of patients with colorectal cancer

combined with the Chinese syndrome differentiation criteria of colorectal cancer in"Chinese Diagnosis and Treatment Guidance of Malignant Tumors"

and develops the appropriate diet therapy nutrition recommendation.