Patients with tuberculosis can eat watermelon, which has no effect on tuberculosis. For tuberculosis patients, the diet mainly needs to enhance nutrition, mainly low-fat, high-protein foods, such as milk, eggs, lean meat, fish, shrimp and other nutrient-rich foods. Of course, it is also necessary to eat more fresh vegetables and fruits as appropriate. For TB patients, spicy and irritating foods are not recommended, such as chili peppers, onions and garlic; there are also high-calorie and high-fat foods, such as drinks and colas, as well as fatty foods, such as animal offal. For patients with tuberculosis, watermelon is not allowed to be eaten if they have combined diabetes.