The presence of saffron in pregnancy preparation herbs may have some effect on pregnancy. Safflower has the effect of promoting blood circulation, eliminating blood stasis and relieving pain (removing blood stasis to relieve pain), and can be used to treat blood stagnation and menstrual closure, dysmenorrhea, post-partum menstrual discharge, obstruction in the abdomen, bruises, sores and swelling and pain. Adverse effects of saffron are still unclear, pregnant women and people with spleen deficiency and constipation should be cautious. It should be noted that a large amount of saffron can cause poisoning, not overdose. From the efficacy and function of saffron, the drug has the effect of activating blood, may cause miscarriage, may have a certain effect on pregnancy, if you need to use must be identified by a professional physician. If there is any discomfort, it is recommended to consult a doctor in time and standardize the treatment under the guidance of a traditional Chinese medicine practitioner, so as to avoid delaying the condition.