Sweet potato vine, also known as sweet potato vine, efficacy for clearing away heat and detoxification, swelling and pain, astringent blood regulating menstruation, the treatment of various poisonous snake bites, carbuncle sores, vomiting and diarrhea, hemorrhage and other diseases, but for the time being no contraindications to its use. Sweet potato vine is the dried above-ground part of sweet potato in the family Cyclophyllaceae, sweet, astringent, slightly cool in nature, with the efficacy of clearing away heat and detoxification, eliminating swelling and relieving pain, astringing the blood and regulating menstruation. If there are various kinds of poisonous snake bites, carbuncle sores, vomiting and diarrhea, blood in the stool, hematochezia, lactation, the sweet potato vine can be used to treat or improve the disease. Currently there is no authoritative research to clarify the use of sweet potato vine contraindications. In order to avoid the hazards of using medication, you should follow the principle of using Chinese herbal medicines with evidence, and use Chinese herbal medicines reasonably under the guidance of a professional doctor’s diagnosis.