Hepatitis B patients can drink black tea for a long time, but must pay attention to control the amount of drinking and concentration. Black tea belongs to a kind of beverage, appropriate consumption will not affect the body, excessive consumption may dilute the stomach acid and affect the digestive function, may induce abdominal distension, abdominal pain, as well as nausea and vomiting and other indigestion symptoms. The amount of caffeine contained in strong tea is high, and overdose will lead to rapid heartbeat and elevated blood pressure, which may cause chest tightness, palpitations, dizziness, fatigue and other discomforts. The ellagic acid contained in strong tea will affect the absorption of iron, and prolonged use is not conducive to the treatment of iron deficiency anemia. Hepatitis B patients in daily life is mainly to try to avoid too greasy and spicy food, and at the same time to prohibit the consumption of alcohol. Black tea does not affect liver function, so patients with hepatitis B can take black tea in moderation for a long time. When any discomfort occurs during the process of drinking tea, it is necessary to go to the regular hospital in time and complete the liver function test.