Low blood pressure, generally defined as a reading below 90/60 mmHg, often doesn’t need treatment at all. Many people walk around with naturally low readings and feel perfectly fine. Treatment only becomes necessary when low blood pressure causes symptoms like dizziness, fainting, blurry vision, or fatigue. When it does, the approach starts with simple lifestyle changes and escalates to medication only if those aren’t enough.
Increase Fluids and Salt Intake
The first thing most providers recommend is drinking more water. Fluids directly increase your blood volume, which raises pressure against your artery walls. Dehydration is one of the most common and easily fixable causes of low blood pressure, and even mild dehydration can make symptoms worse. Alcohol works in the opposite direction, lowering blood pressure even in moderate amounts, so cutting back helps too.
Salt is the other side of this equation. While people with high blood pressure are told to limit sodium, you may be encouraged to add more. Salt helps your body retain water, which expands blood volume. Some people keep salty snacks on hand or add extra salt to meals. Your provider can help you figure out how much to aim for based on your overall health, especially if you have heart or kidney issues.
Wear Compression Garments
Compression stockings work by squeezing your lower body to prevent blood from pooling in your legs and abdomen. Most experts recommend waist-high stockings rated at 20 to 40 mmHg of pressure. Waist-high is important because blood pooling doesn’t just happen in your calves. It can occur in your thighs and abdominal area too. If you wear knee-high stockings and your pooling happens higher up, you may notice swelling just above the top of the stocking, which defeats the purpose.
That said, waist-high stockings can be uncomfortable, especially in warm weather. Thigh-highs or knee-highs are still worth trying if you can’t tolerate the full-length version. They won’t be as effective, but they’re better than nothing.
Use Physical Movements to Raise Pressure Quickly
When you feel dizzy after standing up, certain body positions can buy you time by pushing blood back toward your heart. Crossing your legs while standing and squeezing your thigh muscles together is one of the simplest. Squatting down works even faster because it compresses the blood vessels in your legs and forces blood upward. Clenching your fists repeatedly or tensing your abdominal muscles can also help in a pinch.
These movements are especially useful for orthostatic hypotension, the type of low blood pressure triggered by standing up too quickly. Getting into the habit of sitting on the edge of your bed for 30 seconds before standing in the morning, or rising slowly from chairs, can reduce how often episodes happen in the first place.
Adjust How and When You Eat
Some people experience a noticeable blood pressure drop after meals, particularly large ones. This is called postprandial hypotension, and it happens because your body diverts blood to your digestive system after eating. The bigger the meal and the more carbohydrates it contains, the more pronounced the drop tends to be.
The fix is straightforward: eat smaller, more frequent meals throughout the day (six instead of three) and keep those meals lower in carbohydrates. Refined carbs like white bread, pasta, and sugary foods tend to cause the sharpest drops. Spreading your food intake more evenly prevents the large blood diversions that trigger symptoms.
Medications for Persistent Symptoms
When lifestyle changes aren’t enough, medications can help. The two most commonly prescribed work in different ways. One type raises blood pressure by narrowing blood vessels, which increases resistance in the circulatory system. The other helps your kidneys retain more sodium, which expands your blood volume over time. Both are typically used for orthostatic hypotension that hasn’t responded to other measures.
These medications aren’t taken casually. They can cause side effects like elevated blood pressure when lying down, so providers usually start with the lowest effective dose and monitor closely. You may also be asked to sleep with the head of your bed elevated slightly to counteract nighttime blood pressure spikes.
Address the Underlying Cause
Low blood pressure is often a symptom of something else rather than a standalone problem. Dehydration, blood loss, infections, heart conditions, endocrine disorders, and certain medications (especially blood pressure drugs, antidepressants, and medications for Parkinson’s disease) can all drive readings down. In these cases, the most effective treatment is fixing the root cause rather than treating the low numbers directly.
If a medication is responsible, your provider may lower the dose or switch you to an alternative. If an underlying condition like a thyroid disorder or adrenal insufficiency is involved, treating that condition often resolves the blood pressure issue on its own. This is why evaluation matters before jumping to treatment. A blood pressure reading of 85/55 in someone who feels great means something very different from the same reading in someone who keeps nearly fainting.
What Severe Symptoms Look Like
Most low blood pressure is manageable and not dangerous. But certain symptoms signal that your body isn’t getting adequate blood flow to vital organs. Confusion, cold or clammy skin, rapid shallow breathing, a weak and fast pulse, or fainting that doesn’t resolve quickly all suggest your blood pressure has dropped to a level that needs urgent attention. This is especially true if the drop happens suddenly, which can indicate internal bleeding, a severe allergic reaction, or a serious infection. These situations require emergency care, not lifestyle adjustments.