Pheochromocytoma is a cellular tumor tissue from sympathetic and parasympathetic nodes, so it affects the patient’s nervous system and circulatory system more. Most clinical patients with pheochromocytoma usually have headache, chest tightness, heart pain, rapid heartbeat, panic, and occasional palpitations, especially for middle-aged and elderly people, the effect will be more profound. In the early stages of pheochromocytoma, patients may experience persistent hypertension, especially when going upstairs, sudden dizziness, accompanied by epigastric twitching and pain, followed by chest tightness, nausea, and even vomiting; in the later stages of the disease, pheochromocytoma may cause disorders of the cardiovascular and metabolic systems due to prolonged nerve compression and damage, resulting in frequent sweating, rapid heart rate, chest tightness, and epigastric urgency. In the later stages of the disease, pheochromocytoma may cause disturbances in the cardiovascular and metabolic systems due to prolonged nerve compression and damage. Patients usually become progressively thinner, experience occasional constipation, gastrointestinal dysfunction, and even psychological failure and shock if they experience prolonged malnutrition and persistent disturbances of the cardiovascular system. Pheochromocytoma itself does not cause significant fatal damage, but its induced hypertensive disease can cause serious cardiovascular and renal damage, and its complications are difficult to cure, so it is important to have regular medical checkups to prevent it from happening.