Cassia seeds carcinogenic is not true, there is still a lack of conclusive evidence of carcinogenic effect. Cassia seeds generally do not cause cancer. Cassia seeds is the Ministry of Health announced the dual-use products, can be taken for a long time. Some studies have pointed out that cassia seeds contain rhubarb phenol, rhubarb pigment and other substances, long-term use can cause intestinal lesions, as well as intractable constipation and other adverse reactions. There are also a few cases of irregular uterine bleeding reported in women after taking cassia seeds. At present, there has not yet appeared in the domestic cassia seeds on the carcinogenic effect of research reports. Although a foreign university research has found that cassia seeds carcinogenic claims, but there is still a lack of sufficient basis, the need for further research to confirm. Cassia seeds if you do drug use, must be in the professional Chinese medicine practitioner under the guidance of evidence, so as not to medicine is not the right, but damage to the body.