【Nature and flavor】Sour, warm. Calms the liver and relaxes the muscles, harmonizes the stomach and eliminates dampness.
 [Effects] It is used to treat intestinal muscle spasm, vomiting, diarrhea, abdominal pain, rheumatic joint pain, waist and knee pain. The fruit contains malic acid, tartaric acid, tartrate and vitamin C. After drying, it can be used as medicine, which has the effects of expelling wind, relaxing muscles, activating blood circulation, relieving pain, reducing swelling and relieving gas.
 【Medical records】
 "Leigong Paozhi Lun" says: It regulates the Ying and Wei systems and helps the Qi of the stomach.
 "Bielu": It is used to treat dampness, arthralgia, evil spirits, cholera, vomiting and diarrhea, and convulsions.
 "Compendium of Materia Medica for Food Therapy": It can be used to treat vomiting, wind-induced convulsions after vomiting, and drink the boiled juice.
 "Supplement to Materia Medica": It can relieve coldness, strengthen muscles and bones, help digestion, and stop thirst after dysentery. Take it as a drink. It can also treat beriberi that attacks the heart. Take one of the seeds and boil it. The tender ones are better. It can also stop vomiting, phlegm and spitting.
 "Haiyao Bencao": It can nourish the lungs and stomach, regulate the spleen and liver, digest food and quench thirst.
 "Bencao Gangmu" (Bencao Gangmu): It can stop vomiting, diarrhea, running pigs, beriberi, edema, hot and cold dysentery, heart and stomach pain, and cure thirst.
 "Daily Materia Medica": Treats athlete's foot, pain in the legs and knees, quenches thirst and reduces swelling.
 【Predecessors release medicine】
 "Compendium of Materia Medica": papaya cures cholera, vomiting, diarrhea, cramps, and beriberi, all of which are spleen and stomach diseases, not liver diseases. Although the liver governs the tendons, cramps are caused by damp heat, cold and dampness attacking the spleen and stomach, so cramps must start from the peroneus, and the peroneus and the tendons belong to Yangming. Papaya cures cramps, not to benefit the tendons, but to regulate the spleen and attack the liver . When the earth is sick, metal is weak and wood is strong, so sour and warm are used to collect the dissipation of the spleen and stomach, and to use it to move the tendons to calm the liver evil, which is to drain the wood in the earth to help metal. When the wood is balanced, the earth is in command and the metal is shaded. "Suwen" says: Sour moves the tendons, and people with tendon diseases should not eat too much sour food. Meng Shen said: Eating too much papaya will damage teeth and bones. These are all clear evidence of attacking the liver, and papaya enters the hands and the foot Taiyin, which is a spleen and stomach medicine, not a liver medicine, which is beneficial.
 "Compendium of Materia Medica": Papaya is used for its sour and astringent properties. The sourness can move the tendons, and the astringent properties can consolidate the loose. It has the right wood flavor, so it is especially effective in the liver, tendons and blood circulation. It can treat weakness in the waist and knees, beriberi, and is indispensable for guiding the meridians. It can harmonize stagnant qi and consolidate loose qi. It can calm the stomach, so it can eliminate vomiting, cholera and cramps, reduce phlegm, remove dampness, and promote water circulation. Its sour and astringent properties can astringe the lungs, prevent dysentery, stop irritability and fullness, and quench thirst.
 "New Edition of Materia Medica": Papaya can be used as a minister, assistant, or messenger, but not as the main ingredient. It is a product that nourishes the liver and strengthens the tendons, and has a flavor that nourishes the blood and protects the feet. It is best used together with ginseng, atractylodes, and angelica and rehmannia.
 "Depei Materia Medica": Blood is forced by heat, tendons turn and ache, Qi is stagnant due to dampness, tendons are loose and soft, papaya cools blood and replenishes pain, so it can be used to treat both.
 "Compendium of Materia Medica" says: papaya is sour, astringent and warm, and is only an astringent product. Why does the book mention its functions as regulating the spleen, relaxing the tendons, and astringing the lungs? Because heat and dampness hurt people, and wastefulness and disorder, vomiting and diarrhea, all of which hurt the spleen and stomach and damage the vital energy, damage the Yingwei, and weaken the tendons and bones. Papaya has a sour and astringent taste, which can relieve dampness and heat, and astringe the loss. Therefore, it can nourish the spleen, relax the tendons, and astringe the lungs. Is it really a common flavor for weak lungs and stomach? However, if you eat too much, it will damage your teeth and bones and cause urinary retention, because it is very astringent and damages the liver. Unfortunately, people only know how to regulate their feet, but do not examine the deficiency and excess and take it recklessly, which is a pity. Chen Zheliang.
 "Compendium of Materia Medica" states: The symptoms of using papaya in ancient prescriptions, such as beriberi, foot paralysis, and abdominal and flank distension, are mostly combined with pungent and warm medicines, which are nothing more than expelling cold and dampness evil, and gathering floating and scattered qi. Although it is effective in lowering and suppressing, it is still inseparable from astringency. Therefore, it is suitable for treating tendon diseases and is not good at cramps. Only Xu Shuwei used papaya to treat stiff neck and tense tendons, saying that the tendons of Shaoyin from the feet to the neck are caused by the liver and kidneys being affected by evil. Although the disease is in the upper part, the cause is still in the lower part. It can also be seen that he used frankincense and myrrh as adjuvants, so he let frankincense and myrrh stretch the tendons, and did not blame papaya.