There is no such thing as “three kinds of people” who should not drink saffron, but people with bleeding tendency, pregnant women, low blood pressure, ulcerative diseases, and people who are allergic to saffron are not suitable to drink saffron. Saffron is sweet and flat in nature, belonging to the heart and liver meridians, and has the effect of cooling blood and removing toxins (referring to the treatment of blood-heat and toxins), activating blood circulation to remove blood stasis, and dispersing depression and opening up knots. It is mainly used in the treatment of postpartum abdominal pain with blood stasis, palpitations, bruises, menstrual disorders, dysmenorrhea, menstrual closure, and pain of abdominal masses. Its adverse effects are not yet clear, but because of its effect of activating blood circulation and dispersing knots, the drug should not be used by pregnant women or patients with bleeding tendency. Before using saffron, it is recommended to go to a regular hospital, under the guidance of a professional physician to identify the evidence, do not take it on your own, so as not to cause adverse consequences.