Chronic Pain Syndrome

What is Chronic Pain Syndrome?

Chronic pain syndrome is pain that persists for more than three months and significantly affects quality of life and daily function.^[1] In the ICD-11 classification, chronic primary pain means pain lasting over three months that comes with significant distress or disability and is not better explained by another condition.^[2]

Common symptoms

The main symptom is persistent pain, which may be aching, sharp, burning or spread across several areas. Depression and anxiety are common and often go unrecognized, and pain and sleep problems affect each other in both directions.^{[1, 3]} Many people also notice fatigue and less ability to do everyday tasks.^[4]

Causes and risk factors

Chronic pain can follow an injury or surgery, accompany conditions such as arthritis or back problems, or arise from a sensitized nervous system. Experts describe three broad types: nociceptive pain from tissue injury, neuropathic pain from nerve injury, and nociplastic pain from a sensitized nervous system. Most people have a mix.^[3]

Pain of this kind is considered multi-factorial, with biological, psychological and social factors all contributing.^[2]

How it is diagnosed and treated conventionally

There is no single test for chronic pain. Diagnosis rests on a careful history and examination, and tests are used to look for an underlying condition.^[1]

Effective management usually combines treatments chosen for the individual, such as medicines, psychological therapy, integrative treatments and sometimes procedures.^[3] Exercise is an important part of care. An overview of 21 Cochrane reviews found that exercise may improve pain and physical function, with mostly small to moderate effects and low-quality evidence.^[4]

Why Chronic Pain Syndrome calls for a whole-person approach

Chronic pain is rarely explained by one cause. It is best understood as the interaction of the body, the nervous system, mood, sleep and daily circumstances.^[3]

For that reason, care that addresses several of these areas at once is a reasonable addition to treatment aimed at the source of the pain. The factors below are the ones most often discussed.

A sensitized nervous system

In nociplastic pain, the nervous system becomes over-responsive, so pain can be felt out of proportion to tissue damage.^[3] Doctors treat this type of pain differently from pain caused mainly by tissue injury, which is one reason a full medical assessment matters.

Sleep

Pain can cause poor sleep, and poor sleep can in turn amplify pain. A review describes this two-way link and lists several biological systems that may be involved, including opioid, immune and stress-hormone pathways.^[5] Better sleep is therefore a legitimate goal of chronic pain care.

Mood, stress and anxiety

Depression and anxiety are common in people with chronic pain, can worsen outcomes, and are linked with a higher risk of suicidal thoughts.^[1] If you are having thoughts of harming yourself, call or text 988, the Suicide and Crisis Lifeline, or call 911.

Movement and activity

Staying active despite pain is part of modern treatment, and nonpharmacological approaches that combine psychological methods with physical activity showed small but significant benefits in older adults in a meta-analysis of 25 trials.^{[3, 6]}

Acupuncture for Chronic Pain Syndrome

What the research shows

Acupuncture has been studied for chronic pain mostly in specific conditions, not for chronic pain syndrome as a whole. The strongest evidence is for chronic musculoskeletal pain, osteoarthritis, headache and shoulder pain.

An individual patient data meta-analysis of 39 high-quality trials and 20,827 patients found acupuncture better than both sham acupuncture and no acupuncture for these conditions. The difference was about 0.5 standard deviations against no acupuncture and about 0.2 against sham, and the effect fell by only about 15 percent over one year.^[7] A second analysis of 29 of these trials found that effects did not decrease importantly over 12 months, although the benefit over sham may fade more.^[8]

The picture is less clear in some conditions. A 2020 Cochrane review of 33 studies in chronic low back pain found low-certainty evidence that acupuncture relieved pain only slightly more than sham, below the threshold for a clinically important difference. It found moderate-certainty evidence that acupuncture was better than no treatment.^[9] The authors noted that most trials had a high risk of bias.

How acupuncture may work

Researchers propose several mechanisms. Reviews describe effects on local immune cells and nerve endings, on the body's own opioid and cannabinoid systems, and on signaling in the spinal cord and brain.^{[10, 11]} They also describe effects on stress-hormone pathways that may relate to sleep.^[11] Most of this evidence comes from laboratory work, and these are proposed explanations, not settled facts.

What treatment involves

Treatment uses fine, sterile, single-use needles placed at points chosen for your pain pattern, usually left in place for about 20 to 40 minutes. A course is usually several visits with reassessment. We do not promise a result.

Serious problems are rare. In prospective studies, about 9 in 100 patients had a minor reaction such as bleeding, soreness or redness at a needle site, and serious events occurred in about 1 in 10,000 patients.^[12] Tell the practitioner first if you have a bleeding disorder, take blood thinners, are pregnant, or have a pacemaker (relevant to electroacupuncture).

Ayurvedic medicine for Chronic Pain Syndrome

The Ayurvedic view

Ayurveda has no single equivalent of chronic pain syndrome. Persistent pain, stiffness and poor sleep are traditionally linked to an imbalance of Vata, the principle said to govern movement and the nervous system. This is a traditional framework used to choose treatments, not a biomedical diagnosis.

Therapies that may be used

Care is chosen for the individual and traditionally combines:

• Diet and daily routine intended to calm Vata, such as warm, regular meals and steady sleep hours
• Warm oil massage and local heat over painful areas
• Herbs traditionally used for pain, stress and sleep, prescribed individually
• Transdermal medication therapy, where an herbal preparation is applied to the skin over a painful area

Panchakarma is not appropriate during pregnancy, acute illness or frailty. It would only be considered when it is medically sensible and your physician knows about it.

What the research shows

We found no clinical trials or systematic reviews testing Ayurvedic care as a system for chronic pain syndrome. Individual Ayurvedic herbs have been studied, and these are covered in the herbal section below.

One systematic review of 30 human studies of ashwagandha (Withania somnifera) reported reasonable efficacy in chronic stress, insomnia and rheumatoid arthritis, with mostly mild side effects. It did not report on pain in general, and the authors called for larger, better-designed trials.^[13] Sleep problems are closely linked with chronic pain,^[5] but this does not show that ashwagandha reduces pain.

Herbal medicine for Chronic Pain Syndrome

Herbs and formulas that have been studied

Curcumin, the active compound in turmeric, has been studied for chronic pain, including special high-absorption forms.^[14] Ginger, boswellia, rose hip and SAMe were assessed in a review of dietary ingredients for chronic musculoskeletal pain.^[15]

What the research shows

The evidence is limited. A 2025 meta-analysis of 30 clinical and 29 animal studies concluded that curcumin and nano-curcumin may reduce chronic pain compared with placebo, but results varied widely between trials and the authors said more research is needed.^[14]

A review of 19 dietary ingredients for chronic musculoskeletal pain made no recommendations for boswellia or ginger, because the evidence was low quality or unclear.^[15] We found no systematic review of Chinese herbal formulas for chronic pain in general.

Safety and herb-drug interactions

Herbs are active substances and can interact with medicines. Case reports describe bleeding when warfarin was combined with herbs including dan shen, dang gui, ginger and Boswellia.^[16] Interactions have also been described with antidepressants, immunosuppressants and sedatives.^[17] Many people with chronic pain take several medicines, so a practitioner's review of your full list matters.

Herbal and dietary supplements are a recognized cause of liver injury.^[18] In one study, about one fifth of Ayurvedic products bought online contained detectable lead, mercury or arsenic.^[19] Herbs should come from tested sources and be prescribed individually. Tell us if you are pregnant or breastfeeding, have liver or kidney disease, or have surgery planned.

Translating traditional medicine into modern biological language

The links drawn here are interpretation, not equivalence. Chinese medicine describes chronic pain as stagnation of qi and blood, often with a deficiency underneath. Researchers studying acupuncture look at things that loosely parallel this picture, such as local tissue signaling, the body's opioid systems and how the spinal cord and brain process pain.^{[10, 11]}

Ayurveda's aggravated Vata describes pain, stiffness and disturbed sleep together. This loosely parallels the finding that pain and sleep interact.^[5] No study has shown that a dosha or a channel corresponds to a specific biological process.

How this care fits with your medical care

Integrative care for chronic pain is complementary. Keep your physician, pain specialist and any therapists, and do not stop or change prescribed medicines, including pain medicines, without your prescriber. We do not diagnose the cause of pain, so new or changing pain should be medically evaluated.

Please bring your diagnosis, imaging and test reports, a full list of medicines and supplements, and details of any injections, devices or surgery. A chronic pain plan works best when everyone treating you knows what the others are doing.^[3]

When to seek urgent medical care

New or changing pain can signal a serious problem that needs a medical evaluation, especially if it is sudden or severe.

• Sudden, severe pain unlike your usual pain
• New weakness, numbness, or loss of bladder or bowel control
• Pain with fever, unexplained weight loss or a history of cancer
• Chest pain, shortness of breath or pain spreading to the jaw or arm
• Thoughts of harming yourself (call or text 988, the Suicide and Crisis Lifeline)

If any of these occur, call 911 or go to the nearest emergency department.