Heart failure is known as heart failure, and drinking tea is usually not recommended. The tea you drink in your daily life contains tea polyphenols, which is an excitatory substance that may stimulate the sympathetic nerves, causing tachycardia, increased blood pressure and other discomforts, which can aggravate the degree of heart failure. Secondly, tea also contains a certain amount of ellagic acid, after drinking tea, this substance may cause stimulation of the gastrointestinal tract, thereby aggravating heart failure after gastrointestinal stasis caused by abdominal distension, loss of appetite, nausea, vomiting and other discomforts. If heart failure patients drink tea before bedtime, it may also form fluid retention in the body, making the hydrostatic pressure in the capillaries increase, aggravating the symptoms of double lower extremity edema. Therefore, heart failure patients are usually not recommended to drink tea, need to consult the cardiovascular internal medicine, if necessary, follow the doctor’s advice to choose drug treatment. When the above symptoms occur, it is recommended to go to the hospital in a timely manner, early standardized treatment.