[Nature and flavor] Sour, sweet, slightly warm. Enters the spleen, stomach, and liver meridians.
 【Function】It can stimulate appetite and help digestion, eliminate stagnation and accumulation, promote blood circulation and relieve blood stasis, and resolve phlegm and promote the flow of qi.
 [Main Indications] It is commonly used to treat meat accumulation, abdominal masses, phlegm and fluid, fullness, acid regurgitation, diarrhea, intestinal wind, low back pain, hernia, postpartum occipital pain, lochia retention, and milk and food stagnation in children. Meat stagnation, gastric bloating, diarrhea and abdominal pain, blood stasis amenorrhea, postpartum stasis, heart and abdomen stabbing pain, hernia pain, and hyperlipidemia.
 【Usage and Dosage】Eat raw, decoct in water, or take juice. 10-30 grams each time.
 【Medical records】
 Tao Hongjing: "Boil the juice and wash the lacquer sores."
 "Tang Materia Medica": "The juice is taken for washing hair and itching on the body."
 "Compendium of Materia Medica": "It can treat dysentery and back pain."
 "Lu Canyan Materia Medica": "It can help digestion."
 "Daily Materia Medica": "It can dissolve food stagnation, relieve qi stagnation, strengthen the stomach and relieve diaphragm, and eliminate blood stasis and qi lumps."
 "Southern Yunnan Materia Medica": "It can eliminate meat stagnation and relieve gas; it can treat acid reflux and lumps."
 "Bencao Mengquan": "It can relieve qi stagnation and treat hernia."
 "Food and Medicine" says: "It can dissolve blood clots, gas clots, and activate blood circulation."
 "Compendium of Materia Medica": "It can digest food, eliminate meat accumulation, treat lumps, phlegm, fullness, acid regurgitation, and pain and swelling caused by stagnant blood."
 "New Compendium of Materia Medica": "It can treat spleen deficiency, dampness and heat, eliminate food accumulation, and promote urination and defecation."
 "Compendium of Materia Medica": "Apply it to frostbite."
 【Predecessors release medicine】
 "Ben Cao Jing Shu": Hawthorn, "Ben Cao" says that it is sour and cold, but considering that it can eliminate food accumulation and promote blood stasis, its qi is not cold. If there is stagnation, it will cause diarrhea. If the lochia is not completely discharged after childbirth and accumulates in the Taiyin part, it will cause occipital pain in children. Hawthorn can enter the spleen and stomach to eliminate stagnation and disperse old blood, so it can treat watery diarrhea and abdominal pain in parturients. Generally speaking, it is good at digesting food, strengthening the spleen and stomach, promoting qi stagnation, and eliminating blood stasis, so children and parturients should eat more of it. "Ben Cao" mistakenly thinks it is cold, so it is used to wash sores and itching.
 "Compendium of Materia Medica" says: Hawthorn has a neutral taste and can remove grease and dirt, so it is most suitable for children. If typhoid fever is a serious disease, Zhongjing only uses Dachengqi and Xiaochengqi for stagnant and indigestion. Hawthorn is not used in the 113 prescriptions because it is mild in nature and cannot be used as a heavy medicine. The core has power and cannot be removed.
 "Compendium of Materia Medica" says: Hawthorn is said to strengthen the spleen because it has food accumulation in the spleen. The sour and salty taste can help digestion, so that food can be moved and phlegm can be eliminated, and qi can be broken and discharged. It is called strengthening, and it only belongs to the strengthening of digestion. As for the pain in the pillow of children, it can be stopped by force; the pox can be cured by force; it can also show the speed of blood stasis and transportation. There are two kinds of big and small. The small one is used as medicine. The skin and core are removed, and it is pounded into cakes and dried in the sun. It comes from the north, and the big one is good.
 "Compendium of Materia Medica": Red Claw, Tangjiao, and Hawthorn are the same thing. It was rarely used in ancient prescriptions, so although there is Red Claw in "Tang Materia Medica", later generations did not know that it was this thing. Since Zhu of Danxi began to write about the benefits of Hawthorn, it has since become an important medicine. There are two kinds of it, both of which grow in the mountains: one is a small one, which the mountain people call Tangjiaozi, Maozha, and Houzha, and can be used as medicine. The tree is several feet tall, with five pointed leaves and thorns between the branches. Five small white flowers bloom in March, and the fruit is red and yellow. The fat ones are like small apples, and the small ones are like fingers. They ripen in September. Its core is shaped like morning glory seeds, black and very hard; one is a large one, which the mountain people call Yangqizi. The tree is more than ten feet tall, with the same flowers and leaves, but the fruit is slightly larger and yellow-green, with astringent skin and soft flesh. It is very sour and astringent at first, and can be eaten after frost. The benefits should be the same, but the herbalists do not collect it. According to the Records of the Mutual Induction of Things, when boiling the hard meat of an old chicken, adding a few hawthorns will make it easier to break down, so its function of eliminating meat accumulation can be inferred. ...It can help digest food, eliminate meat accumulation, treat lumps, phlegm, fullness, acid regurgitation, and pain and swelling caused by blood stasis.
 "Medical Records of Combining Chinese and Western Medicine": Hawthorn, if used with sweet medicine, can dissolve blood stasis without hurting new blood, relieve depression without hurting the vital energy, and its nature is especially peaceful.