Reddish color in the stool is not necessarily tomatoes, the appearance of reddish color in the stool is related to dietary conditions, anal disease factors. 1. Dietary factors: eating too much red pigmented vegetables or fruits, such as red dragon fruit, watermelon, strawberries, tomatoes and so on, will lead to the appearance of light red stuff in the stool. 2. Anal and intestinal disease factors: common diseases are anal fissure, internal hemorrhoids, rectal polyps, etc. These diseases can lead to anal area, rectum and other parts of the blood vessels rupture bleeding, in defecation blood will be discharged with the stool, the stool can appear reddish things. If you exclude dietary factors, the appearance of light red stuff in the stool, you need to go to the hospital in a timely manner to carry out relevant examinations to identify the cause of the disease, and actively cooperate with the doctor for treatment.