If you’re reading this for someone else, you probably already know the shape of it. A person you love is in pain, the answers keep changing, and somehow you became the one who keeps the notes, the appointments, and the list of things to try next. That is a lot to carry, and you deserve a straight account of what is known and what isn’t.
What is CRPS?
CRPS is a form of chronic pain that usually affects an arm or a leg. Mayo Clinic describes it as typically developing after an injury, a surgery, a stroke or a heart attack, with pain out of proportion to the severity of the first injury.
People search for it under several names, including “CRPS disease,” reflex sympathetic dystrophy, and RSD.
There are two types. According to Mayo Clinic, about 90% of people with CRPS have type 1, and type 2 follows a distinct nerve injury.
Early on, doctors can overlook it, because Stanford Medicine notes that its first signs can look like normal post-injury inflammation. That is one reason many families spend a long, frustrating stretch hearing “we don’t know.”
What does CRPS look like day to day?
The person you love may have burning pain, swelling, changes in skin temperature or color, and a limb that is hard to move. A retrospective study of 159 patients, published in PMC, found the most common symptoms were a difference in temperature (98.1%), limited movement (93.7%), and swelling (91.8%).
That list sounds clinical. At home it sounds like someone who can’t bear a bedsheet on their foot, who stops using a hand, or who cancels plans again.
Not everyone checks every box, though. A study of 1,043 patients, published in the Journal of Pain via ScienceDirect, found that some diagnostic signs showed up in only about 50% of patients. If your family member doesn’t match a checklist you found online, the pain is still real.
We cover the less obvious symptoms in Surprising Symptoms of CRPS Not Associated With The Disease, which is worth reading if they keep surprising you.
Why did this start, and could anyone have prevented it?
Many families ask this early, and often the person with CRPS asks it too, privately. The honest answer is that nobody fully knows, and Mayo Clinic says so directly.
What is known is how it usually begins. In the 159-patient study in PMC, the main causes included direct trauma (75.5%) and surgery without previous trauma (15.7%). A fall, a fracture, or a procedure that went exactly as planned can all be the starting point.
Dr. Katinka van der Merwe compares the injury to a match thrown into a kitchen already filling with gas. The match is the trigger, not the cause, which is why one person develops CRPS while thousands with the same injury recover. So an injury that came before CRPS is not proof that anyone did something wrong. We wrote about the guilt that patients and relatives both carry in CRPS Is Not Your Fault: How To Manage Family Dynamics, and the longer list of starting points is in CRPS Triggers and What Could Have Started It.
How is CRPS diagnosed?
There is no single blood test. Clinicians use a symptom-and-sign checklist called the Budapest criteria. According to UCSF Pain Management Education, the Budapest Clinical Diagnostic Criteria have a sensitivity of 0.99 and specificity of 0.79. In plain terms, the checklist catches nearly everyone who has CRPS, and it sometimes flags people who don’t.
Because diagnosis rests on an exam, who does the exam matters. Our guide to how CRPS is diagnosed walks through what the appointment involves.
If you’re coordinating records, bring dated notes. Write down when the injury happened, when the pain changed, and what each clinician said. One page is enough, and it spares your family member from retelling the whole story at every visit.
Can CRPS go away, and what is the outlook?
Anyone who gives you a certain answer is guessing, because the course varies. Mayo Clinic says that in some people, signs and symptoms go away on their own, and in others they persist for months to years.
What you do early seems to count. Mayo Clinic also says treatment is likely to be most effective when started early in the course of the illness, and the Cleveland Clinic says the sooner someone receives a diagnosis and treatment, the more likely symptoms will improve.
A flare-up months later is not a personal failure either. The Cleveland Clinic reports that CRPS recurs in about 10% to 30% of people, and knowing that ahead of time takes some of the fear out of it.
We talk about what progress can look like, without hype, in What Does CRPS Remission Look Like?. In her book, Dr. Katinka van der Merwe is direct that no responsible clinician can promise guaranteed relief or remission. We hold ourselves to the same standard on this site.
What should you ask the care team?
Good questions get better answers, and they show the clinician you’re paying attention.
| Question | Why it helps |
|---|---|
| What type of CRPS do you think this is, and why? | Type 1 and type 2 are defined by whether a distinct nerve injury is confirmed. |
| How did you reach the diagnosis? | You learn whether the Budapest criteria were used and what else was ruled out. |
| What is the plan if the first treatment doesn’t help? | You see whether there is a sequence or just one option. |
| What does this plan ask of us in time, travel, and cost? | Logistics decide whether a plan is workable, so ask early. |
| What can’t you promise us? | A clinician who answers this honestly is easier to trust. |
| Who coordinates between the specialists? | Fragmented care is a common reason families feel lost. |
Take the table to the appointment and write the answers next to each question. Then ask the person with CRPS which question matters most to them, because they may have one you haven’t thought of.
How do you support someone with CRPS?
Believing them comes first. In the foreword of her book, Dr. Katinka describes patients who feel they have to prove they are really suffering, and who carry heavy guilt over money, over not being fun, and over being in bed. When a family simply says “I believe you,” it lifts a weight no medication touches. We say something close to it in the clinic: you are not crazy, these symptoms are real, and they make sense when we look at the nervous system.
Belief gets easier to show once the practical load shrinks. You can offer to keep the appointment calendar, sit in on visits and take notes, or handle the insurance calls, but ask before you take any of it over, since some people want to keep control of the things they still can. And keep treating them as the whole person they were before the diagnosis, with their own opinions about their care.
Constant pain wears on mood too, and some people with CRPS have dark thoughts. If you’re worried, ask directly. We wrote about this carefully in CRPS, the ‘Suicide Disease’: Living Past the Label, a hard read that is there when you need it.
You can’t do any of this on no sleep. Caregivers who stop seeing friends and stop resting can’t keep it up for years, so your own energy is part of the plan.
What is the Spero approach, and who is it for?
The Spero Clinic is an intensive, in-person neurologic rehabilitation program in Fayetteville, Arkansas. Dr. Katinka compares pain to a warning light on a car’s dashboard: covering the light doesn’t repair the engine. So our approach is to treat the nervous system, not just the symptom, working across the central and autonomic nervous system through an individualized program. You can read how we handle CRPS specifically in How The Spero Clinic Treats CRPS, and what a visit involves in What to Expect At Our Clinic.
We want you to know the limits before you spend any time on us. The program is in person, so most patients travel. It is private pay and usually not covered by insurance. It doesn’t suit someone who only wants medication, someone who can’t manage the time away from home, or someone who needs a promised outcome before starting.
It also doesn’t replace appropriate medical evaluation or emergency care. We don’t believe we are anyone’s only hope, and many people heal in different ways. If you want the broader picture first, our CRPS overview is a calmer place to begin.
What mistakes do families make?
It’s easy, and understandable, to wait for certainty before acting. Early treatment seems to help, though, so get a diagnosis from someone who knows CRPS and keep researching while care begins.
Fear can also start doing the talking. When you’re frightened, pushing toward whatever feels most decisive is tempting, so ask the person what they want to try.
A dramatic recovery story online tells you what happened to one person, not what will happen to yours. Ask for context, follow-up, and honest limits, and be wary of anyone who skips them. And because researching on someone’s behalf can quietly turn into a second job, share it with another relative and let the person with CRPS see that the work is shared.
FAQ
What is the most common cause of CRPS?
Injury is the most common starting point. In a 159-patient study published in PMC, direct trauma accounted for 75.5% of cases and surgery without prior trauma for 15.7%. The underlying mechanism still isn’t fully understood.
Can CRPS go away for good?
No one can promise that. Mayo Clinic says symptoms go away on their own in some people and persist for months to years in others. Starting treatment early appears to help, and the outlook is individual.
What is the life expectancy of someone with CRPS?
The sources we reviewed for this page don’t give a reliable figure, so we won’t offer one. The risk families should take seriously is the emotional toll of unmanaged pain. Our article on living past the label covers that.
How serious is CRPS?
It is serious enough to deserve early, expert attention. Mayo Clinic stresses treating it early, and says constant severe limb pain that makes touch intolerable warrants a visit to a health care provider.
Your next step
Write a one-page timeline of the injury, the symptoms, and every clinician seen so far, then bring it to a free discovery call. Schedule a free discovery call, and we’ll listen to the full story and tell you honestly whether Spero is a fit. Hope is still within your reach, and so is a clearer next step for the person you’re looking after.
