The reasons for bad heart, blushing and fever may be multifaceted. For patients with hypertension, such as secondary hypertension and pheochromocytoma, paroxysmal elevation of blood pressure and blushing sensation may occur, and the level of catecholamines in the patient’s blood is significantly increased. In addition, for heart disease, especially cardiovascular disease, patients with sympathetic over-excitement may experience increased heart rate, blushing and fever. In patients with heart valve disease, especially rheumatic heart disease, and combined valve disease, infective endocarditis may occur, and the patient may develop fever, etc., accompanied by blushing and fever. This condition requires the administration of regular antibiotic systemic therapy, and patients with acute heart failure episodes may also experience flushing and fever.