After receiving interventional stenting, clinical symptoms of coronary heart disease can be improved or disappear, but pathological changes such as coronary atherosclerosis and abnormal blood viscosity do not change. Therefore, when the relevant undesirable factors persist, it is easy to relapse, and the most relapses occur within two years, or even again or multiple relapses. Therefore, patients with coronary heart disease should not take it lightly after stent placement, and to prevent recurrence, in addition to insisting on taking medication on time as required by doctors, they should also do the following: regular checkups. Every 2 to 3 months, patients should have their blood pressure, blood glucose, blood lipids and blood viscosity rechecked at the outpatient clinic. If the index is higher than the normal range, the patient will be at risk of relapse in about six months and should actively take appropriate treatment measures. Appropriate exercise. After interventional stenting patients can start to exercise appropriately, but they should pay attention to gradual progress. Usually relatively safe walks (20-30 minutes each time, 5 times a week) can be taken. If there is any feeling of tiredness or pulse exceeding 110-120 times/minute when walking, stop immediately, and if chest tightness occurs, take nitroglycerin immediately and stop exercising for a period of time. Strictly no smoking. Smoking causes restenosis of the intima at the stent implantation site and accelerates the progression of coronary atheroma plaque. Stabilize your mind. Emotional excitement can trigger coronary artery spasm and ischemia, so patients should consciously develop the mental behavior habit of not being anxious and moderate in work and rest. Carry medication with you. Patients should carry with them medications such as nitroglycerin and contact numbers of relatives to facilitate rescue in case of an accident.