It happens when the blood vessels do not constrict (tighten) as you stand up. It is usually a symptom of an underlying disorder rather than a disease in itself. The condition is also known as postural hypotension. Everyone is likely to experience a mild form of postural hypotension at some time.

Does orthostatic hypotension happen to everyone?

Anyone can get orthostatic hypotension. The condition becomes more common as you age. These factors increase the risk: Anemia or vitamin B12 deficiency.

Is postural hypotension rare?

Neurogenic orthostatic hypotension (NOH) is a rare subtype caused by underlying neurologic disorders that affect a specific part of the autonomic nervous system.