Mastocytosis patients can strictly speaking eat all seasonal fruits, including watermelon, oranges, kiwi, bananas, pineapples, etc., because the main content of fruits, i.e., the composition is fiber, fructose. Mastocytosis is mainly caused by a variety of factors that disrupt the body’s hormone levels, thus causing comprehensive clinical symptoms. Diet usually requires avoiding foods that are too greasy, spicy and stimulating, and fruit content, i.e., the ingredients are mainly fiber, vitamins, fructose, and do not contain any spicy or stimulating ingredients, let alone grease, so eating fruit will not cause mastocytosis to worsen. All kinds of seasonal fruits can be eaten, and there will be no worry about aggravation or induction of mastocytosis due to eating fruits, so almost all seasonal fruits, including watermelon, banana, pineapple, kiwi, apple and orange can be eaten.