If you feel dizzy, lightheaded, or like you're about to black out when you sit up or get tilted upright, that's orthostatic hypotension — a sudden blood-pressure drop. It's extremely common after SCI, especially early on, and very manageable.

What It Is

Normally your nervous system tightens blood vessels and your leg muscles pump blood back up when you stand. After SCI, that automatic control is impaired and the muscle tone is gone, so blood pools in your legs and abdomen and your blood pressure drops when you go from lying to upright. Many people with SCI also simply run a lower baseline blood pressure than before.

Symptoms & Triggers

Symptoms: dizziness, lightheadedness, blurred vision, fatigue, ringing ears, nausea, feeling faint, or actually passing out.

Common triggers: sitting up quickly, mornings, prolonged bed rest, heat, large meals, dehydration, and a full bladder or bowel.

Managing It (Start Here)

Change position slowly. Raise the head of the bed in stages, then sit for a few minutes before transferring. Tilt/recline wheelchairs let you come upright gradually.
Wear an abdominal binder and compression stockings. These stop blood from pooling in the abdomen and legs — one of the most effective non-drug fixes.
Stay hydrated, and ask your doctor whether modestly increasing salt is appropriate.
If symptoms hit, recline and elevate your legs (tip the chair back) to restore blood flow to your head.
Avoid long periods flat in bed when you can — it makes upright tolerance worse.

Medications

When the basics aren't enough, doctors may add a medication to raise blood pressure — commonly midodrine, sometimes pseudoephedrine, fludrocortisone, or droxidopa. These need specialist oversight and timing (usually taken before getting up, not at bedtime).

Not the Same as Autonomic Dysreflexia

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Two opposite problems — don't confuse them. Orthostatic hypotension is low blood pressure when upright. Autonomic dysreflexia is dangerously high blood pressure (T6 and above) triggered by something like a full bladder. People with higher injuries can experience both at different times — know the signs of each.

What Nobody Tells You

It usually improves. For most people the body adapts over the first weeks to months and upright tolerance gets much better — early rehab can be the worst of it.
The abdominal binder is underused. A simple binder plus compression stockings fixes a lot of the dizziness people just endure.
Check your bladder and bowel. A full bladder can both drop you (and, for T6+, spike you into AD). Empty before sitting up.
Don't power through a faint. Recline and elevate your legs at the first warning — pushing on risks a real blackout and a fall.

Sources & Further Reading

This page draws on lived SCI experience and published clinical guidance, including:

Autonomic Dysreflexia — Model Systems Knowledge Translation Center (MSKTC)
Acute Management of Autonomic Dysreflexia — Consortium for Spinal Cord Medicine Clinical Practice Guidelines (Paralyzed Veterans of America)
Low Blood Pressure — MedlinePlus (U.S. National Library of Medicine)

SCI.help articles are information, not medical advice. Practice varies by injury level, provider, and institution — always confirm specifics with your own care team.

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Based on SCI cardiovascular-management guidance and lived experience. Not medical advice. · Last reviewed June 2026

Low Blood Pressure (Orthostatic Hypotension)