Disease analysis: Hello, Astragalus membranaceus is not an anticoagulant. Astragalus has the effects of invigorating primordial qi, strengthening spleen and stomach, removing muscle fever, expelling pus and relieving pain, healing sores and promoting granulation, and promoting blood circulation and blood production. Can be used for treating edema, oliguria, hyperhidrosis, qi deficiency, anorexia, loose stool, metrorrhagia, uterine prolapse, chronic ulcer and diabetes. Introduction: Astragalus membranaceus contains trace element selenium, which is an essential element for human body and can resist cadmium, mercury, methylmercury and other carcinogenic heavy metals. On the other hand, the occurrence of malignant tumor is related to the decline of cellular immune function. Selenium contained in Astragalus membranaceus can participate in the synthesis and activation of various enzymes and protect cells from the damage of biological oxidation process.