Complex regional pain syndrome (CRPS) affects roughly 26 people per 100,000 each year, making it uncommon but not extremely rare. For context, that’s less common than conditions like carpal tunnel syndrome but more common than many disorders classified as “rare diseases” (which typically affect fewer than 5 per 100,000). Whether CRPS feels rare depends on where you look: in the general population it’s unusual, but in an orthopedic surgeon’s office after wrist fractures, it’s a recognized complication.
Incidence in the General Population
The best population-level data comes from a Dutch study that tracked CRPS across an entire region, finding an incidence of 26.2 per 100,000 person-years. That’s roughly 1 in every 3,800 people developing the condition each year. An earlier U.S. study from Olmsted County, Minnesota found a rate about four times lower, at 5.5 per 100,000. The difference likely reflects diagnostic awareness and criteria used rather than a true geographic gap. The real incidence probably falls somewhere between these figures, depending on how strictly cases are identified.
These numbers may also undercount mild or short-lived cases that resolve before a formal diagnosis. On the other hand, the current diagnostic criteria (known as the Budapest criteria) have a specificity of about 68% in clinical settings, meaning some patients diagnosed with CRPS may actually have a different pain condition. This diagnostic gray zone makes pinning down exact numbers difficult.
Who Gets CRPS Most Often
Women develop CRPS two to four times more often than men. In clinical cohorts, the skew is even more dramatic: one large study of 698 patients found that 86% were female. The average age at onset is around 41, though the highest incidence in population data appears in women between 61 and 70, particularly those who are postmenopausal. Men can and do develop CRPS at any age, but the condition has a clear predilection for women in midlife and beyond.
Children and adolescents also develop CRPS, most commonly in girls during their teenage years. No reliable incidence data exists for pediatric cases specifically, but the condition is well-documented in this age group and tends to respond better to treatment than adult-onset cases.
Risk After Fractures and Surgery
Fractures are the single most common trigger, accounting for about 44% of all CRPS cases. The distal radius (the wrist bone that breaks when you catch yourself during a fall) is the classic culprit. A large population-based register study found that 0.20% of people who broke their wrist developed CRPS within one year. That’s about 1 in 500. Patients who needed surgery for the fracture had a slightly higher rate (0.31%) compared to those treated with a cast alone (0.17%).
Elective surgeries carry their own risk profile. A German analysis of over 80,000 surgical patients found that 0.34% received a first-time CRPS diagnosis within 12 months of their procedure. Upper-limb surgeries were three times riskier than lower-limb surgeries (0.60% vs. 0.20%). The highest rates appeared after specific procedures:
- Open wrist fracture repair: 1.17%
- Hand joint surgery: 1.06%
- Hand tendon or ligament repair: 0.82%
- Open ankle fusion: 0.97%
- Ankle arthroscopy: 0.78%
By comparison, common procedures like knee replacements (0.07%) and hip replacements (0.13%) carried much lower risk. The pattern is consistent: surgeries on the hands, wrists, ankles, and feet pose the greatest concern.
Type 1 vs. Type 2
About 90% of CRPS cases are classified as Type 1, which develops after an injury without detectable nerve damage on testing. Type 2, which involves confirmed nerve injury, accounts for the remaining 10%. The symptoms of both types overlap significantly, and many clinicians now treat them along a single spectrum rather than as sharply distinct conditions.
How Often CRPS Resolves
One of the more sobering statistics: only 5.4% of patients were completely symptom-free at 12 months in a prospective study tracking recovery. This doesn’t mean no one improves. Many patients experience meaningful reductions in pain and better function with treatment. But full resolution within the first year is the exception, not the rule, and CRPS frequently becomes a long-term condition requiring ongoing management.
The impact on daily life is substantial. In a multicenter survey of CRPS patients, unemployment jumped from 2.8% before onset to 57% after diagnosis. Nearly 85% reported being unable to engage in economic activities, and about 55% could not independently perform basic daily tasks like dressing, cooking, or bathing. These figures come from patients with established, ongoing CRPS rather than newly diagnosed cases, but they illustrate why the condition is sometimes called “the suicide disease” in patient communities.
Putting the Numbers in Perspective
CRPS sits in an awkward space: common enough that most orthopedic surgeons and pain specialists have seen it, but rare enough that many primary care doctors and emergency physicians may not recognize it quickly. The average person’s lifetime risk is low. But if you’ve just had wrist surgery and are experiencing burning pain, swelling, skin color changes, and temperature differences in the affected limb weeks after the injury should have started healing, the condition deserves serious consideration. Early diagnosis and treatment within the first few months consistently leads to better outcomes than delayed intervention.