The hazards of cassia seeds are as follows: 1. cassia seeds can lower blood pressure, which can make many patients with weak or low blood pressure appear to be worse and worse, and even life-threatening. 2. cassia seeds in the process of boiling and drinking water can cause the human spleen and stomach to suffer a blow, especially the usual poor spleen and stomach function, spleen and stomach cold, easy to eat vomit, eat indigestion, and even diarrhea. The process of using cassia seeds should be very careful. 3, cassia seeds for some people can not be taken, especially pregnant women do not take, or there will be some harm to the fetus and women themselves. The use of cassia for a long time for women is also likely to induce irregular menstruation, so that the endometrium can not work properly. 4, cassia for a long time to take easily induced constipation.