Can hypertension cause fever?

In clinical practice, “fever” refers to elevated body temperature, primarily categorized as low-grade or high-grade fever. It is a defensive physiological response triggered by bacterial or viral infection in individuals with compromised immunity. However, many individuals with hypertension may also experience fever, though the underlying cause remains unclear. So, can hypertension itself cause fever?

Can hypertension cause fever?

Hypertension generally does not cause fever. Hypertension is a condition characterized by persistently elevated arterial blood pressure. Its common clinical manifestations include dizziness, headache, fatigue, limb numbness, facial flushing, tinnitus, and hearing loss. While hypertension may impair cerebral nerve function—leading to dizziness—it does not affect the central thermoregulatory centers in the hypothalamus; therefore, it does not induce fever.

Common symptoms of hypertension include dizziness, headache, palpitations, and a sensation of tightness or discomfort in the neck. Notably, some hypertensive patients remain entirely asymptomatic—only discovering their elevated blood pressure incidentally during routine health examinations. This scenario can be particularly dangerous: because they experience no obvious symptoms, such individuals may underestimate the severity of their condition and delay or neglect appropriate treatment, potentially allowing hypertension to progress into more serious complications over time.

Fever typically arises due to inflammatory responses triggered by cold exposure or infectious agents. When fever occurs, timely administration of anti-inflammatory, antipyretic, and lung-ventilating medications—as clinically indicated—may help alleviate symptoms. If symptoms persist or worsen, prompt consultation with an internal medicine physician is essential, and treatment should strictly follow medical advice. We hope this information has been helpful to you!