Complete guide

Chronic Inflammation and Pain: The Complete Guide

Chronic pain and inflammation explained: the drivers behind joint, nerve and back pain, the blood tests that find them and treatments that work.

By Dr. Samia McCully, ND · Updated October 23, 2026

Chronic pain is pain that lasts or recurs for more than three months, and chronic inflammation is an immune response that stays switched on after its protective job ends. The two overlap but are not identical: inflammation drives many forms of pain, while the nervous system shapes how intensely that pain is felt. In 2023, 24.3 percent of U.S. adults had chronic pain and 8.5 percent had high-impact chronic pain that limited daily life, according to the National Center for Health Statistics. Women reported higher rates than men, at 25.4 percent and 9.6 percent. Chronic pain and inflammation care looks for the drivers behind the pain rather than treating the signal alone.

Types of Chronic Pain

Chronic pain takes several forms, and each points toward different drivers. The International Association for the Study of Pain defines pain as an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage. Five types appear most often in midlife adults:

Joint pain, including osteoarthritis of the knees, hips and hands, and the aches that rise during the menopause transition.
Back pain. Low back pain affected an estimated 619 million people worldwide in 2020 and remains the top cause of years lived with disability, according to a Global Burden of Disease analysis in The Lancet Rheumatology.
Nerve pain, such as sciatica, neuropathy and trigeminal neuralgia, felt as burning, shooting or electric pain.
Headaches and migraines. In a 2018 national survey, 20.1 percent of women and 10.6 percent of men reported a severe headache or migraine in the past three months.
Abdominal pain, often tied to gut inflammation, infection or food reactions.

Dr. Samia McCully treats this full range, from nerve pain and chronic migraines to joint, abdominal, muscle and back pain. She also states a limit plainly: bone-on-bone joint pain, where cartilage has worn away, needs a joint replacement or injection therapy that Wellness Architecture does not provide.

Dr. McCully on treating pain 5:18

Drivers of Inflammation and Pain

Drivers of inflammation keep the immune system active long after an injury or infection has passed. Five drivers account for most chronic, low-grade inflammation:

Blood sugar and insulin. Insulin resistance and repeated glucose spikes raise inflammatory signaling throughout the body.
Excess body fat, especially abdominal fat, which releases inflammatory proteins such as interleukin-6.
Gut problems and hidden infections, which keep the immune system engaged and often show up as abdominal pain, bloating or body-wide aches, as the gut health guide explains.
Nutrient gaps and diet. Low vitamin D, iron deficiency and a diet heavy in ultra-processed food add to inflammatory load, while vegetables, fruit and polyphenol-rich foods reduce it.
Sleep loss and ongoing stress, which raise inflammatory markers and lower the threshold at which the nervous system registers pain.

Dr. McCully describes pain as a sign that something else is wrong, and lists the usual culprits as inflammation created by infections, a poor diet, stress and blood sugar dysregulation. Dehydration belongs on the list of reversible contributors: in a 2024 post, she describes waking at night with leg cramps and migrating leg pain that took a day and a half of steady rehydration to clear.

Emotional and Nervous System Factors in Pain

Emotional and nervous system factors change how strongly pain is felt, independent of tissue damage. Stress, fear of movement, past trauma and constant vigilance keep the nervous system on alert, and an alert nervous system amplifies pain signals. Researchers call this amplification central sensitization, and the pain it produces is classified as nociplastic pain.

Clinical trials support treating the emotional side of pain directly. In a 2022 randomized trial published in JAMA Psychiatry, 151 adults with chronic back pain received pain reprocessing therapy, an open-label placebo injection or usual care. Pain reprocessing therapy, which teaches patients to reinterpret pain signals as less threatening, produced substantial and durable pain relief, along with measurable changes in how the brain responded to back pain.

Dr. McCully treats emotional healing as a non-negotiable part of resolving pain. She describes a week-long stiff neck during a frustrating family visit that disappeared within half an hour of crying after the visitors left. She also describes a patient whose daily panic attacks fell from about eight a day after four months of dietary, supplement and treatment work, and stopped almost entirely only after two childhood traumas were addressed.

Getting to the root of physical pain 4:44

Evaluation of Chronic Pain and Inflammation

Evaluation of chronic pain looks for the drivers behind the pain rather than naming the painful area alone. A complete evaluation contains five elements:

A detailed history: where the pain started, how it moves, what worsens it, sleep, stress, diet, medication use and emotional events around its onset.
Inflammatory markers. High-sensitivity C-reactive protein (hs-CRP) and the erythrocyte sedimentation rate (ESR) measure body-wide inflammation.
Metabolic labs, including fasting insulin, fasting glucose and A1C, which reveal blood sugar problems that feed inflammation.
Nutrient and thyroid labs, including ferritin, iron, vitamin D and a complete thyroid panel, since deficiencies and thyroid underactivity produce aches, cramps and fatigue.
Imaging and specialist referral when the history points to structural damage, nerve compression or bone-on-bone joints.

The American Heart Association and CDC describe hs-CRP below 1 mg/L as low, 1 to 3 mg/L as average and above 3 mg/L as high cardiovascular risk. Wellness Architecture's 20-marker Custom Wellness Panel includes hs-CRP, ESR, fasting insulin, A1C, ferritin, iron and vitamin D, and a continuous glucose monitor comes with every program.

Driver	How the pain often shows up	Markers or tools
Blood sugar and insulin	Body-wide aches, joint pain, fatigue	Fasting insulin, A1C, CGM
Inflammation	Stiffness, swelling, flares	hs-CRP, ESR
Nutrient gaps	Muscle cramps, bone and muscle aches	Ferritin, iron, vitamin D
Thyroid underactivity	Muscle aches, stiffness, fatigue	Complete thyroid panel
Gut problems	Abdominal pain, bloating, body aches	History, stool testing when indicated

Treatment Approaches for Chronic Pain and Inflammation

Treatment for chronic pain and inflammation addresses several drivers at once, because they reinforce each other. The core elements:

Anti-inflammatory nutrition built on whole foods, steady blood sugar and adequate protein, with ultra-processed food reduced.
Movement and strength. The American College of Physicians recommends exercise, tai chi, yoga, mindfulness-based stress reduction and other nondrug approaches as first-line treatment for chronic low back pain.
Weight loss when excess weight loads the joints. In the IDEA trial, adults with knee osteoarthritis who lost about 11 percent of body weight through diet and exercise reduced pain by 51 percent over 18 months.
Sleep repair, since restoring sleep raises the pain threshold.
Emotional work, addressing the stress and unresolved experiences that keep the nervous system on alert.
Targeted supplements and medication review, including curcumin for joint pain and a careful look at long-term pain medication.

Wellness Architecture programs combine dietary changes, supplementation, detailed lab analysis and in-office treatment sessions one to two times a week, and typically run about 12 weeks. Dr. McCully reports that pain often eases within weeks, citing a dentist whose years of joint pain cleared in about two weeks. She distinguishes that relief from healing, which she describes as taking three to five months. Patient-reported outcomes on the clinic's YouTube channel include a woman close to 50 whose joint, back and sciatic pain and migraines eased as she lost 35 pounds, and a patient with trigeminal neuralgia of seven years whose pain eased over a 12-week program. These are individual experiences, not average results.

Pain, fatigue and weight: a patient story 1:58

Pain Signals a Problem Rather Than Defining It

Pain works as an alarm that something in the body needs attention, not as a diagnosis in itself. Treating only the alarm, with pain medication or rest, quiets the signal while the cause continues. Dr. McCully frames pain as a signal that fades once the underlying inflammation or dysfunction lessens enough that the signal no longer needs to fire. Finding the cause therefore matters more than naming the painful spot.

Chronic Inflammation Drives Many Types of Pain

Chronic inflammation sensitizes nerves, damages joint tissue and keeps muscles guarded and tight. Inflammatory proteins such as interleukin-6 and tumor necrosis factor lower the threshold at which nerves fire, so ordinary movement starts to hurt. In the IDEA trial, the diet groups lost more weight and reduced interleukin-6 more than the exercise-only group. Lowering inflammation often reduces pain in several areas at once.

Blood Sugar and Body Fat Feed Inflammation

Blood sugar swings and excess abdominal fat keep inflammation running. Fat tissue, especially around the abdomen, releases inflammatory signals, and high insulin promotes further fat storage. Excess weight also loads the knees and hips mechanically. Stabilizing blood sugar and reducing abdominal fat lower both the chemical and the mechanical load, as described in the weight loss resistance guide.

Emotional Stress Changes How Pain Is Felt

Emotional stress raises muscle tension, disrupts sleep and shifts the brain toward threat detection, which amplifies pain. The International Association for the Study of Pain notes that pain is always a personal experience, influenced to varying degrees by biological, psychological and social factors. Pain reprocessing therapy and cognitive behavioral therapy reduce chronic pain by changing how the brain interprets it. The emotional fatigue guide covers the related toll of long-term stress.

Sleep Loss Lowers the Pain Threshold

Short or broken sleep makes the body more sensitive to pain, and pain in turn disrupts sleep. A 2024 review in Clinics and Practice concluded that poor sleep predicts pain more strongly than pain predicts poor sleep. Studies of chronic pain populations report insomnia in a large majority of patients. Restoring sleep raises pain tolerance and lowers inflammatory markers, a pattern explored in the sleep and energy guide.

Frequently Asked Questions

What causes chronic inflammation?

Chronic inflammation develops when the immune response stays switched on after its job is done. Common drivers include insulin resistance and abdominal fat, poor diet, gut problems and lingering infections, smoking, sleep loss and ongoing stress. The drivers often overlap, so evaluation looks for several at once.

Which blood tests show inflammation?

The main blood tests for inflammation are high-sensitivity C-reactive protein (hs-CRP) and the erythrocyte sedimentation rate (ESR). The AHA and CDC describe hs-CRP below 1 mg/L as low, 1 to 3 mg/L as average and above 3 mg/L as high cardiovascular risk. Metabolic, nutrient and thyroid labs then point to the cause.

Does stress cause physical pain?

Stress changes how the nervous system processes pain, raising muscle tension and pain sensitivity. The International Association for the Study of Pain defines pain as both a sensory and an emotional experience. Psychological treatments that change how the brain interprets pain reduce chronic back pain in clinical trials.

Does menopause cause joint pain?

Joint and muscle pain becomes more common during the menopause transition, as falling estrogen affects joints, muscle and bone. Weight gain, sleep disruption and inflammation add to the effect. Joint pain in midlife deserves evaluation, because thyroid problems, low vitamin D and arthritis produce similar symptoms.

How long does it take for inflammation to go down?

Inflammation markers and pain often improve within weeks of addressing the drivers, while tissue healing takes several months. Dr. McCully distinguishes fast pain relief from true healing, which she describes as taking three to five months. Wellness Architecture programs typically run about 12 weeks.

Common Misconceptions About Chronic Pain and Inflammation

Misconception: Pain Always Matches Visible Damage on Imaging

Imaging findings and pain often disagree. Disc bulges and joint changes appear on scans of many people without pain, while others hurt with normal scans. Pain reflects nerve signaling, inflammation and nervous system processing, not only structure.

Misconception: Painkillers Fix the Problem Behind the Pain

Pain medication blocks the signal without removing the cause. FDA labels for over-the-counter NSAIDs warn of heart attack, stroke and kidney risks, which rise with higher doses and longer use. Dr. McCully describes a patient whose decade of ibuprofen use ended in a kidney transplant. Finding the driver reduces the need for long-term medication.

Misconception: Chronic Pain Has to Be Lived With

Chronic pain often improves when its drivers are treated. In the IDEA trial, diet-induced weight loss plus exercise cut knee pain by about half over 18 months, and 38 percent of that group reported little or no pain. Inflammation, blood sugar, sleep and stress all respond to treatment.

Misconception: Inflammation Is Always Bad

Acute inflammation protects the body, fighting infection and starting tissue repair. The problem is inflammation that never switches off. Treatment aims to remove the drivers of chronic inflammation, not to block the body's response to injury.

Misconception: Rest Is the Right Treatment for Chronic Pain

Prolonged rest weakens muscle and stiffens joints, which often worsens chronic pain. The American College of Physicians recommends exercise, tai chi, yoga and other active approaches as first-line treatments for chronic low back pain. Graded movement builds tolerance over time.

Ongoing Debates in Chronic Pain and Inflammation

Fascia as a sensory organ divides researchers. Some describe the connective tissue wrapped around muscles and organs as a richly innervated sensory organ and a direct source of pain. Others regard it as one tissue among many in musculoskeletal pain. Dr. McCully describes a myofascial release session at 27 that changed her habitual slouch for good, an experience that shaped her interest in fascia.

Supplements such as curcumin and conventional medication compete for first place in joint pain. A 2024 network meta-analysis of 23 randomized trials with 2,175 knee osteoarthritis patients found that curcumin reduced pain compared with placebo but did not improve physical function. Critics point to variable formulations and doses across trials.

The role of emotional trauma in physical pain draws strong views. Integrative practitioners and pain psychologists see unresolved emotion as central to many chronic pain cases. Skeptics caution against implying that pain is imagined, and stress that emotional and physical drivers usually coexist.

hs-CRP outside heart risk prompts disagreement. Some clinicians track hs-CRP as a general gauge of inflammatory load and treatment progress. Guidelines define its thresholds for cardiovascular risk and advise against universal screening.

Rapid relief and tissue healing describe different timelines. Some practitioners treat early pain relief as proof of cure. Others, including Dr. McCully, describe relief within weeks as a sign that inflammation has fallen, with healing taking months.

Components of the Pain and Inflammation Response

The pain and inflammation response contains several connected parts. Inflammatory markers such as hs-CRP form a component of an inflammatory workup and show how much immune activity runs in the background. Fascia forms a component of the musculoskeletal system, linking muscles, joints and organs. The dorsal horn of the spinal cord forms a component of the pain pathway, where signals are amplified or dampened before reaching the brain. Sleep quality forms a component of pain recovery, and emotional history forms a component of a complete pain evaluation. Lasting relief depends on improving several of these parts together.

Summary

Chronic pain and inflammation affect about a quarter of U.S. adults, with joint, back, nerve, headache and abdominal pain the most common forms. Blood sugar, body fat, gut problems, nutrient gaps, sleep loss and emotional stress drive the inflammation and nervous system sensitivity behind them. Pain signals a problem rather than defining it, and evaluation of hs-CRP, metabolic, nutrient and thyroid markers points to the cause. Chronic pain and inflammation care measures these drivers and treats them together.