Persimmons are bright in color and sweet in taste, so everyone likes them, and they are harvested from late fall to early winter. In addition to being eaten fresh, persimmons are mostly dried and made into persimmon cakes, which can be used as snack fillings. According to analysis, persimmons contain protein, fat, carbohydrates, starch, pectin, tannic acid, many vitamins and minerals. Among them, vitamin C and sugar are 1~2 times higher than normal fruits. Persimmon can effectively replenish human nutrients and intracellular fluid, and play the role of moistening the lungs and generating fluid; it contains a large amount of vitamins and iodine, which can treat endemic goiter caused by iodine deficiency; the organic acids in persimmon, etc. help gastrointestinal digestion, promote appetite, and at the same time have the effect of astringent intestine to stop bleeding; it can promote the oxidation of ethanol in the blood, help the body excrete alcohol, and reduce the damage caused by alcohol to the body; it helps lower blood pressure and It helps to lower blood pressure, soften blood vessels, increase coronary artery flow, and can activate blood and reduce inflammation, improving cardiovascular function. But persimmons contain a lot of tannic acid, eat into the belly, easy to form precipitation with stomach acid, causing gastric stones, because persimmons, especially persimmon peel, rich in tannic acid, under the action of stomach acid to produce some insoluble precipitates, it can be plant fiber and food residues, such as glued together, forming “plant ball”, and gradually form gastric stones. After the formation of gastric stones, most patients have epigastric discomfort, fullness, nausea or pain; some patients have symptoms similar to chronic gastritis, such as loss of appetite, indigestion, epigastric distention, dull pain, acid reflux and heartburn; small persimmon stones initially look like apricot kernels, but will accumulate larger and larger. If a persimmon stone cannot be expelled naturally, it can cause obstruction of the digestive tract, resulting in severe pain in the upper abdomen, vomiting, and even vomiting of blood, and in some patients, gastric ulcers and bleeding. Gastric stones that cause symptoms need to be treated, and the diagnosis is usually confirmed by X-ray gastroscopy or gastroscopy. In the past, the treatment of gastric persistent stone was mostly done by herbal lithotripsy or surgical stone extraction. With the development of fiberoptic endoscopy, laser blast lithotripsy or crushing of gastric stones by special instruments is now carried out and then expelled through the pylorus. However, large stones still require surgical extraction. Recently, two patients with gastric stones were admitted to our gastrointestinal surgery department. Both of them were treated for eating persimmon and then drinking alcohol to form huge gastric stones, which caused clinical symptoms and we performed gastrotomy to remove the stones after thorough preparation. Therefore, you must pay attention to eating persimmons and stop eating them in moderation. Do not eat a lot of persimmons on an empty stomach, even if you eat persimmons after a meal, you should be moderate, not too much at a time, and, after eating should not eat acidic food again. Especially those who have too much stomach acid and poor digestive power should pay more attention. Persimmon skin can not be eaten, some people feel that eating persimmons while chewing persimmon skin than eating persimmons alone more taste, in fact, this way of eating is not scientific. Because most of the tannic acid in persimmons is concentrated in the skin, it is impossible to get rid of all the tannic acid in persimmons when they are deacidified, so if you eat them together with the skin, it is easier to form stomach persimmon stones, especially when the deacidification process is not perfect, and the skin contains more tannic acid. In addition, do not eat with foods such as crab, fish and shrimp, which contain high protein. In Chinese medicine, crab and persimmon are both cold foods, so they cannot be eaten together. From the point of view of modern medicine, crabs, fish and shrimps containing high protein can easily coagulate into lumps under the action of tannic acid. Tannic acid in persimmon can form compounds with calcium, zinc, magnesium, iron and other minerals in food that cannot be absorbed by the body, so these nutrients cannot be used, so eating more persimmons can easily lead to a lack of these minerals. Also because persimmons contain more sugar, so people eat persimmons than eating the same amount of apples, raw pears more satiety, which will affect appetite and reduce the intake of regular meals. It is generally considered appropriate not to eat persimmons in the case of fasting, not more than 200 grams per time. In addition, gargle after eating persimmon contains high sugar and pectin, there is always a part of persimmon left in the mouth after eating, especially in the teeth, plus the weak acid tannic acid, it is easy to cause erosion of the teeth, the formation of dental caries, so it is appropriate to drink a few mouthfuls of water after eating persimmon, or rinse the mouth in time. This is the way to eat persimmon is good for your health.