Lotus seed is a medicinal food and can be eaten directly. Lotus seed is the dried mature seeds of lotus in the water lily family. It is sweet and astringent in flavor and flat in nature. It belongs to the spleen, kidney and heart meridians. Its effects are tonifying the spleen to stop diarrhea, stopping the band, benefiting the kidney and astringent essence, nourishing the heart and tranquilizing the mind. It can be used in the treatment of diarrhea of deficiency of the spleen, diarrhea of the belt, spermatorrhea and seminal emission of deficiency of the kidney, urination and frequent urination, deficiency vexation (vexation caused by deficiency heat in the body), palpitation, insomnia and other diseases. Contraindications to its use, adverse reactions are not clear. Treatment of spleen deficiency, prolonged diarrhea, loss of appetite, often used with ginseng, Poria, atractylodes; treatment of spleen deficiency with hypogonadism, often used with Poria, atractylodes, yam; treatment of spleen and kidney deficiency, with thinning, lumbar and knee soreness, can be used with Cornus officinalis, yam, gorgonians; treatment of renal deficiency of jingguan not solid (deficiency of the kidneys, the kidneys can not hide the spermatozoa) spermatorrhea, semen slippage, often used with gorgonian, dragon bones. If you need to take lotus seed, you need to consult a medical professional.