What are the causes of orthostatic hypotension?
Jun 23, 2025
Source: Cainiu Health
Dr. Tian Hongbo
Introduction
In general, orthostatic hypotension may be caused by factors such as aging, dehydration, diabetic neuropathy, arrhythmia, heart failure, and others. Symptomatic management typically involves general treatment and medication. It is recommended to engage in moderate daily exercise, such as jogging, swimming, or cycling, to promote blood circulation, improve physical fitness, and reduce the risk of disease.
Generally, orthostatic hypotension may be caused by factors such as aging, dehydration, diabetic neuropathy, arrhythmia, heart failure, and others. It is recommended to seek timely medical consultation to determine the underlying cause and receive symptomatic treatment under the guidance of a qualified physician. Detailed explanations are as follows:
1. Age
With increasing age, the body's responsiveness to blood pressure regulation may decline. Particularly in elderly individuals, the cardiovascular system's ability to adjust is weakened, making orthostatic hypotension more likely to occur during postural changes. Elderly individuals should perform postural changes slowly and avoid sudden standing to reduce the impact on the cardiovascular system.
2. Dehydration
Dehydration leads to reduced blood volume, resulting in decreased cardiac output and a subsequent drop in blood pressure. When changing from a lying to a standing position, this drop in blood pressure becomes more pronounced, easily triggering orthostatic hypotension. Symptoms may also include thirst, reduced urine output, and decreased skin elasticity. It is recommended to replenish fluids and electrolytes promptly, especially after exercise or during hot weather.
3. Diabetic Neuropathy
Long-term high blood glucose levels can damage nerve fibers, particularly the autonomic nerves. When diabetes affects the autonomic nerves that regulate the cardiovascular system, it can impair the normal constriction and dilation functions of blood vessels, leading to orthostatic hypotension. This may also be accompanied by diabetes-related symptoms such as excessive thirst, frequent urination, and weight loss. It is recommended to follow medical advice for treatment with medications such as mecobalamin tablets, epalrestat tablets, and lipoic acid for injection.
4. Arrhythmia
Severe tachycardia or frequent ventricular premature contractions can reduce stroke volume or disrupt the heart's pumping rhythm, preventing effective adjustment of cardiac output during postural changes, thereby causing a drop in blood pressure. Associated symptoms may include palpitations, chest tightness, and shortness of breath. It is recommended to follow medical advice for treatment with medications such as quinidine sulfate tablets, procainamide hydrochloride tablets, and verapamil hydrochloride tablets.
5. Heart Failure
In patients with heart failure, impaired cardiac contractile and diastolic function prevents effective pumping of blood into the arterial system. During postural changes, the heart cannot rapidly increase cardiac output to maintain blood pressure like a normal heart, resulting in hypotension and insufficient cerebral perfusion. Patients may also experience symptoms such as dyspnea, edema, and fatigue. It is recommended to follow medical instructions for symptom relief using medications such as metoprolol tartrate tablets, bisoprolol fumarate tablets, and ramipril tablets.
It is also recommended to engage in moderate daily exercise, such as jogging, swimming, or cycling, to promote blood circulation, improve physical fitness, and reduce the risk of illness.
