Patients with common angina can be discharged from the hospital 2~3 days after cardiac stenting, and patients with acute myocardial infarction need about two weeks, the specific discharge time depends on the condition. Cardiac stents are mainly used in the treatment of coronary heart disease. The condition of patients with common coronary heart disease is relatively stable, and they can return to normal within two to three days after stenting, and can be discharged from the hospital in two to three days after the operation. Acute myocardial infarction also requires stenting, and the recovery time after the operation is relatively long, taking about two weeks. The condition of patients with different coronary heart disease varies significantly, and some patients may have more serious conditions, and may still experience aggravation of their condition after implantation of stents, with significantly longer hospitalization time, or even sudden aggravation of their condition. Patients with coronary artery disease should assess the severity of their condition through coronary angiography, and take regular oral medication as prescribed by the doctor after implantation of stents, so as to strive for early recovery and shorten hospitalization time.