Can Guillain-Barre Syndrome Come Back?
Yes, but it is uncommon. Fewer than 5% of people who have had Guillain-Barre syndrome (GBS) get it again. For most people GBS is a one-off illness: it gets worse over a few weeks, reaches its worst point, and then slowly improves.
When symptoms do seem to come back, there are three quite different explanations, and they are treated differently:
- a dip after treatment (a treatment-related fluctuation)
- a true second episode of GBS (recurrence)
- a different, longer-lasting condition called CIDP
A dip after treatment
About 10% of people have a treatment-related fluctuation: they improve or stop getting worse after treatment such as intravenous immunoglobulin (IVIG) or plasma exchange, and then get worse again. This is part of the same illness rather than a new episode of GBS. Tell the care team straight away if it happens.
A second episode of GBS
A true recurrence means a new, separate episode after someone has recovered. It is rare (fewer than 5% of people). Because GBS can come back, people are usually checked every few months after recovery at first, then yearly.
GBS is not contagious and is not inherited, so a recurrence is not caught from anyone and is not a sign that it runs in the family. See is GBS contagious? and is GBS hereditary?
When it might be CIDP instead
Chronic inflammatory demyelinating polyneuropathy (CIDP) is an autoimmune condition in which the immune system damages the protective coating (myelin) of the nerves outside the brain and spinal cord. Doctors consider it the long-term form of GBS. The difference is the timescale:
| GBS | CIDP | |
|---|---|---|
| How it develops | Gets worse over days to a few weeks | Gets worse over at least 8 weeks |
| Course | Usually a single episode, then recovery | Often relapses, or keeps slowly getting worse |
| Infection beforehand | Common | Usually none |
| How common | About 1.1 to 1.8 per 100,000 a year | About 0.8 to 8.9 per 100,000 a year in the US |
Because the symptoms (weakness, numbness, tingling, loss of reflexes) are so similar, CIDP can at first be mistaken for GBS. Doctors start to suspect CIDP when symptoms keep getting worse for more than 8 weeks.
CIDP is usually long-term, but it is often treatable. Steroids, IVIG and plasma exchange are all used, and up to 4 in 5 people respond well. Steroids do not help GBS, but they are a standard treatment for CIDP. People with CIDP generally have a normal life expectancy, but without treatment symptoms often worsen over several years, so early treatment gives the best chance of controlling it.
When to contact a doctor
If you have had GBS and notice symptoms returning, such as new tingling, numbness or weakness, contact your specialist or GP promptly.
Get emergency help if weakness is spreading quickly, if you are short of breath (especially lying flat) or choking on saliva.
For more on the usual outlook after GBS, see GBS life expectancy and recovery. For the early signs, see GBS symptoms.
References
- Guillain-Barre Syndrome (StatPearls). NCBI Bookshelf, National Library of Medicine. Accessed 7 November 2026.
- Guillain-Barré syndrome. NHS. Accessed 7 November 2026.
- Guillain-Barré Syndrome. National Institute of Neurological Disorders and Stroke (NIH). Accessed 7 November 2026.
- Guillain-Barre syndrome - Symptoms and causes. Mayo Clinic. Accessed 7 November 2026.
- CIDP (Chronic Inflammatory Demyelinating Polyneuropathy). Cleveland Clinic. Accessed 7 November 2026.
- Chronic Inflammatory Demyelinating Polyradiculoneuropathy. Johns Hopkins Medicine. Accessed 7 November 2026.