of fried foods, food preservatives, synthetic aroma for foods and beverages, carbonated drinks, foods that rapidiy cooked, overuse of animal foods and inadequate chewing of foods and etc.Environmental factors: In addition to dietary factors which have just been mentioned, there are more important factors which are not usually considered, of which inappropriate use of industrial life tools can be mentioned such as: abnormal noises, cordless phones and mobile phones radiation, radiation of bulbs and especially cold lamps or florescent lamps, unnecessarily use of lighting during the day, modern life, sedentary lifestyle, comfort-seeking, low physical activity and lack of exercise. These factors create the conditions for Souda incidence in human body.Psychological factors: Different mental conflicts, persistent sadness, confusion, indecision, hesitancy in the course of life distrust in God and the lack of seriousness in changing the fate, surrender to setbacks, jealousy, greed, cutting friendly, romantic and family relations are psychological factors that definitly enhance the level of souda humour in human body. Also, incomplete sexual actions have an important role to play in the incidence breast and prostate cancer.Cancer treatment: The first strategy of Iranian traditional medicine against cancer is cleansing the body of sauda humour and its attendant humours, and then other treatments such as medical management, surgery and diet, was prescribed in next phase. In traditional Iranian medicine, common methods to cleans body of sauda humour and attendant humours includes: vomiting (gastric cleansing), bloodletting and cupping (vessels and liver cleansing), depilatory (lymph nodes cleansing) and etc. It may be noted that although there is no complete cure, treatment of cancer at early stages is easier than advanced stages, so treatment of cancer must be given high priority as soon as the disease is diagnosed.