Red beans and red beans are different in appearance and efficacy. 1. Appearance (1) red beans are cylindrical and slightly flat, slightly flat or rounded ends, the surface of purple-red or dark reddish brown. Smooth, slightly glossy or lusterless, hard texture, gas, taste slightly sweet, chewing beans. (2) red beans were nearly round, bright red or dark red surface, glossy, lateral strips of umbilical cord, seed coat is crisp. Gas is slight. 2. Efficacy (1) red beans, its flavor sweet, sour, slightly cold, to the heart, small intestine, spleen meridian. It has the effects of strengthening the spleen, inducing dampness, clearing heat and removing toxins (removing heat and toxins from the body) and eliminating carbuncles. Clinically, it is used to relieve symptoms such as tiredness, abdominal distension, and sticky stools due to the deficiency of the spleen and the loss of transportation and digestion, which leads to the stagnation of water and fluid. It can also be used to treat swollen sores and ringworm. (2) red beans, its flavor is bitter, flat. It has the efficacy of regulating qi and activating blood circulation, clearing heat and removing toxins. It can be used to treat hernia pain, blood stagnation and menstrual closure, anonymous swellings and poisons, and boils (mostly occurring on the limbs or face, with a small shape and deep roots, as hard as nails). Specific application of the drug is recommended under the guidance of a specialized physician.