All parts of lotus seed can be used as medicine, according to the different parts of the medicine can be divided into lotus seed, lotus seed heart, stone lotus seed. Lotus seed is the dried mature seeds of lotus, usually remove the pericarp, after drying into medicine. It can also be used raw. The heart of lotus seed is the dried young leaves and embryonic root of the mature seed, which is used in decoction. Stone lotus seed is the old ripe fruit of lotus, also known as lotus seed with skin, used in decoction. The medicinal properties of lotus seed are sweet, astringent and flat. It belongs to the spleen, kidney and heart meridians. It has the effect of tonifying the spleen, stopping diarrhea, stopping diarrhea, benefiting the kidney and astringent essence, nourishing the heart and tranquilizing the mind, and is capable of treating clear and scanty diarrhea, lumbar and knee soreness and weakness, diarrhea in spleen deficiency, insomnia and spermatorrhea, and other disorders. The adverse reactions and contraindications of this product are not clear. Lotus heart is bitter and cold in nature; it belongs to heart and kidney meridian. Functions: clearing the heart and tranquilizing the mind, transporting the heart and kidneys (heart fire descends, kidney water rises, mutual control), astringent essence and stopping bleeding. It can treat blood heat and vomiting of blood, insomnia and spermatorrhea. The adverse reactions and contraindications of this product are not clear. Stone lotus seed is sweet, astringent, slightly bitter and cold in nature; it belongs to spleen, stomach and heart meridians. Functions: clearing dampness and heat, appetizing and feeding, clearing the mind and tranquilizing the spirit, astringent and stopping spermatorrhea (consolidating semen and preventing spermatorrhea). It can treat vomiting, heartburn and insomnia, and turbid urine. It is contraindicated for people with prolonged dysentery with deficiency cold. The use of the drug needs to be under the professional guidance of a doctor, and should not be used on its own to avoid adverse reactions.