Traditional Chinese medicine believes that the human body that is on fire after the imbalance of yin and yang internal heat symptoms, generally can include the liver fire on the inflammation, gastric heat, heart fire hyperactivity and other types of evidence. Watermelon is a cold food, moderate consumption will not appear on the fire performance. Watermelon is a common food in daily life, generally does not lead to fire, the food contains a small amount of vitamin C, malic acid, carotene, etc., normal people eat in moderation not only will not be harmful to the body, but also beneficial to health. However, it is not recommended to eat too much. Fire specific manifestations of dry mouth, yellow urine, stool dryness, constipation, tongue sores, etc., usually with excessive consumption of spicy, warm food, such as chili, pepper, ginger, lamb, etc., or mental overstimulation, dysfunction of internal organs and other related activities. If you have any of the above physical discomforts, you should seek prompt medical attention.