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Living with Reversible cerebral vasoconstriction syndrome

A rare condition of the brain's blood vessels that causes severe headaches and temporary narrowing of arteries.

Understanding Reversible cerebral vasoconstriction syndrome

Reversible cerebral vasoconstriction syndrome is a rare brain blood vessel condition with severe headaches and temporary narrowing of brain arteries.

It can come with or without symptoms such as weakness or seizures. The narrowing in the arteries is reversible. It may happen on its own or be triggered, most often after childbirth or by certain substances such as illicit drugs and some antidepressants (SSRIs). Stroke is the major complication. It usually starts in adulthood.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Sudden, severe headache (thunderclap headache)
  • Repeated headache attacks
  • Migraine
  • Narrowing of brain arteries (vasospasm)
  • Brain imaging changes

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Brain and nervous system specialists (neurologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
What may have triggered this for me, and should I avoid it?
What warning signs of stroke should I watch for?
Which specialists and follow-up scans do I need?

Quick facts

Symptoms usually startAdult

GARD says it may occur on its own or be triggered, most often by childbirth or by substances that act on blood vessels. It does not list a gene.

Neurological

Also known as: rcvs

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Reversible cerebral vasoconstriction syndromeGARD ID 12768 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Reversible cerebral vasoconstriction syndrome.

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