Patients with heart failure do not have three major symptoms, but tend to present with wheezing after activity, nocturnal paroxysmal dyspnea, and lower extremity edema. The manifestations of heart failure are varied and there are no specific symptoms, and different patients may present with different clinical manifestations. The main symptom of patients with heart failure is wheezing after activity, patients with chronic pulmonary stasis, the body is in a state of hypoxia, after the activity will lead to the symptoms of hypoxia aggravated, manifested as dyspnea. Patients with heart failure may also present with nocturnal paroxysmal dyspnea, which may be related to increased nocturnal reflux aggravating pulmonary stasis and manifesting as nighttime suffocation. Heart failure can lead to an increase in venous return pressure, a large amount of blood in the lower limbs, resulting in lower limb bruising, can appear lower limb edema. Heart failure patients should be given to reduce the cardiac load diuretic drugs, specific treatment should follow the doctor’s instructions.