Watermelon can clear the heat, in addition to the annoyance of thirst: watermelon contains a lot of water, in the acute fever fever, thirst and sweat, irritability, eat a piece of sweet and sand, water full of watermelon, the symptoms will immediately improve Watermelon contains sugar and salt can diuretic and eliminate kidney inflammation, protease can be insoluble proteins into soluble proteins, increase the nephritis patient's nutrition Watermelon contains a substance that can lower blood pressure, can play a role in lowering blood pressure After eating watermelon, urine will increase significantly, which can reduce the content of bile pigment and can make stools smooth, for the treatment of jaundice. Watermelon contains substances that can lower blood pressure, which can play a role in lowering blood pressure The amount of urine will increase significantly after eating watermelon, which can reduce the content of bilirubin, and can make stools smooth, which has a certain effect on the treatment of jaundice Fresh watermelon juice and fresh melon rind to increase the elasticity of the skin, reduce wrinkles, and add luster.　　Precautions Maternity is weak, and from the point of view of Chinese medicine, watermelon is cold, so eating too much will lead to too cold and damage the spleen and stomach.　　If patients with kidney function problems eat too much watermelon, they will ingest too much water and can't discharge this excess water in time, which will cause excessive water storage in the body, increase blood volume, and easily induce acute heart failure.　　Diabetic patients eating watermelon will lead to an increase in blood sugar. The more serious condition will even have metabolic disorders and lead to acidosis, which is life-threatening.　　Mouth ulcers in traditional Chinese medicine is considered to be a deficiency of Yin internal heat, false fire on the disturbance caused. Eating watermelon causes the water needed to recover from mouth ulcers to be discharged too much, thus aggravating the yin deficiency and internal heat, resulting in a prolonged healing time for the patient.