Saffron is contraindicated for patients with bleeding tendency should not be used, pregnant women should be cautious of using saffron. Saffron, sweet flavor, flat nature. It belongs to heart and liver meridians. It has the efficacy of activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), cooling the blood and removing toxins (referring to the treatment of blood-heat and toxins), and relieving depression and tranquilizing the mind. It is used for treating menstrual obstruction and impediment in the abdomen, postpartum stagnation, warm-heat poisonous spots (warm-heat poisonous evils invading the body resulting in spots and plaques on the skin), depression and congestion, palpitation and frenzy. Saffron has the efficacy of activating blood circulation, dispersing blood stasis and relieving pain. It may lead to increased bleeding after use by patients with bleeding tendency. Saffron has the effect of promoting blood circulation and blood circulation, if pregnant women drink it, it may cause uterine contraction, which may lead to miscarriage, so pregnant women should be cautious of using saffron. When consuming saffron, it should be consumed under the guidance of a doctor and should not be taken in large doses without authorization.