If you take Chinese medicines that are contraindicated in women’s pregnancy, they may cause miscarriage, such as peach kernel, safflower, hyssop, strychnine, cardamom, glycyrrhiza glabra, panax ginseng, and so on, and pregnant women are advised to take them in accordance with the doctor’s instructions. Pregnancy contraindication refers to the prohibition or caution of certain drugs during pregnancy. Generally speaking, all drugs that can cause abortion or damage the fetal element are contraindicated. According to the different degree of damage to women’s pregnancy drugs, generally can be divided into two categories of caution and prohibition. Drugs used with caution include drugs that activate blood circulation and remove blood stasis (promoting blood circulation and eliminating blood stasis in the body), drugs that break qi, drugs that attack the lower part of the body, and pungent, hot and slippery products, such as peach kernel, safflower, hyssop, turmeric, rhubarb, manganese nitrites, hedgehog, epiphyllum, dongquaizi, and so on. The prohibited drugs are those with strong toxicity or strong medicinal properties, such as croton, petunia, halberd, shanglu, musk, trigonelline, curcuma, leeches, spotted fibers, andrographis, arsenic, and so on. Pregnant women are in a special period, if you need to take Chinese medicine, it is recommended to standardize the use of medication under the guidance of a traditional Chinese medicine practitioner to identify the evidence, and not blindly self-medication, so as not to cause adverse effects on the fetus.