Within the scope of the indications, and in accordance with the correct dosage often drink senna is generally not harmful to the person. Senna is a traditional Chinese medicine, for the legume lentil plant senna dry leaflets. This product has a diarrhea heat stagnation, laxative, diuretic effect. For the heat knot stagnation, constipation, flatulence and other therapeutic effects. The adverse reactions and contraindications of senna are not clear, and the drug should be taken with caution for pregnant women. From the adverse reactions and contraindications of this product, under the guidance of a Chinese medicine practitioner to take senna to take on the person generally not harmful. If there are symptoms of discomfort, you must go to the hospital as soon as possible, by the Chinese medicine practitioner to develop individualized diagnosis and treatment plan, so as not to delay the condition.