It belongs to the mature seed of cassia obtusifolia, a leguminous plant, which can be eaten raw or fried, also known as cassia obtusifolia. The effect is to clear the liver and improve eyesight, moisten the intestines and relax the bowels. Can be used for treating headache, dizziness, red eyes, swelling and pain, and constipation due to heat. Modern pharmacological research shows that cassia seed contains anthraquinone chrysophanol, aloe-emodin, cassia seed, sterols and fatty acids. It has the effects of lowering blood pressure, reducing blood lipid, inhibiting bacteria and making cells immune. Can be used for treating obesity, habitual constipation, mastitis, mycotic vaginitis, infantile dyspepsia, oral ulcer and cataract. Cassia seed is both medicine and food, which can be decocted to make tea and drink, and has the function of clearing away heat and improving M. Cassia seed has laxative effect, which can interfere with the absorption of fat and carbohydrate, and is the most commonly used Chinese medicine for weight loss treatment. It can be added into decoction, powder and tablet, and the laxative effect of raw decoction is stronger than that of decoction. The usual dosage of decoction is 10- 15g, which is effective after the decoction is broken. Cassia seed is sweet, bitter and slightly cold. Cassia seed can clear liver, improve eyesight, induce diuresis and relieve constipation. Treat hepatitis, ascites due to liver cirrhosis, hypertension, infantile malnutrition, night blindness, wind-heat eye pain, and habitual constipation.