The causes of diarrhea after drinking qi and blood tonic Chinese medicine include too long a time or too much medicine, may also be the use of medication is not symptomatic or allergic to certain components of the drug, or may not have anything to do with the drug, you need to seek medical attention from the doctor to make an accurate diagnosis. 1. Too long a time or too much medicine: As patients take qi and blood tonic Chinese medicine, the dose of drugs is too large, too strong tonic effect, resulting in increased burden on the gastrointestinal tract, diarrhea symptoms may occur. 2. The use of medication is not symptomatic: due to the patient to take qi and blood tonic Chinese medicine is not symptomatic, resulting in the body to appear with the role of the drug contrary to the symptoms, manifested in diarrhea discomfort. 3. Allergy to certain components of the drug: due to the low immunity of patients with deficiency of qi and blood, allergic reactions may occur when taking certain allergy-prone components of the drug, manifesting the above symptoms. 4. Diarrhea may also have nothing to do with the drugs taken, due to diet, wind, cold, dampness and other injuries, or other diseases leading to diarrhea. It is recommended to consult a doctor in time to find out the cause of the disease. It is recommended to consult a physician in detail before taking medication to avoid blind use of medication, strictly in accordance with the doctor’s instructions on the dose and duration of medication, to ensure that the medication is safe. At the same time, drink qi and blood during the traditional Chinese medicine to maintain a light diet, to avoid the stimulation of adverse factors.