Stomach pain after drinking black tea is mainly associated with irritating pain, infectious pain and allergies. If the patient has gastritis and other primary gastrointestinal diseases, and at the same time drink the black tea there are too cold or too hot and other irritating factors, to consider the irritating pain. If the symptoms can be gradually reduced after rest and local warmth, there is no need for deliberate treatment, but it is necessary to reduce the intake of stimulating food in the future life. If the patient has fever and other accompanying symptoms after drinking black tea, it should be considered as infectious pain caused by bacterial contamination of black tea, and anti-infective treatment should be carried out under the guidance of the doctor. If the patient after drinking black tea, accompanied by generalized itching, rashes or chest tightness and other allergic symptoms, the main consideration is caused by some components of black tea allergy, need to be under the guidance of the doctor for anti-allergy treatment.