The claim that walnut bark fights cancer is not scientific. Cancer can be treated through surgery and other therapies after diagnosis. Cancer is a common life-threatening malignant disease, which can be caused by heredity, bad habits and other factors. After diagnosis, the main treatment is surgical resection, which can be supplemented by radiotherapy, chemotherapy, targeted therapy and other therapies according to the condition. After active treatment, the earlier the staging, the better the prognosis. Walnut bark does not have the effect of anti-cancer, if you blindly believe in unscientific rumors, it is very likely to delay the condition, and ultimately lead to the deterioration of the condition and other adverse consequences. If patients have any discomfort, it is recommended to consult a doctor in time and follow the advice of a professional physician for treatment.