Summary: Metabolic inflammation is common in people with metabolic disorders. It is a big driver of chronic pain conditions such as knee osteoarthritis and neuropathy. New research shows that long-term inflammation changes how mitochondria (the cell’s power plants) and nerves work. That often leads to chronic pain.
We know that people with metabolic disorders get more chronic pain. Think low back pain, knee arthritis, nerve damage, and other pain. In a few cases, like knee arthritis, it may come from wear and load. But most of the time, it comes from metaflammation.
Metabolic inflammation is also called metaflammation. It is a slow, steady burn found in everyone with a metabolic disorder. Science has only started to study it and its role in the harms of obesity. New studies show that fat is also a hormone-making organ. When fat stops working right, as in obesity, inflammation goes up.
This metaflammation raises the risk of heart disease, blood vessel disease, non-alcoholic fatty liver disease, and more. It also raises the risk of chronic pain.
Take knee pain. Many chronic pain specialists long thought knee arthritis in heavy people came from wear and load. That view is changing. After all, not all heavy people get arthritis. New studies now suggest that metabolic inflammation might serve as a trigger in many cases.
We can now test inflammation markers better. These markers run high in people with obesity or metabolic disorders. Over the years, high levels may do a lot of harm.
Metaflammation is probably behind some pain we do not yet understand, like fibromyalgia. Many people with metabolic disorders keep having pain with no clear cause. That is no secret.
Bit by bit, science is learning how metaflammation drives pain. One new study shows that inflammation signals that stay high, even in small amounts, may change how mitochondria work. These signals seem to change how nerve cells work too. That plays a key role in switching acute pain to chronic pain. So people with metabolic health problems tend to have fatigue and chronic pain. They may still look fairly healthy.
More proof comes from long-term infections. People with chronic infections get more chronic pain, because their inflammation markers run high. So vague, lasting pain is more common in people with HIV, tuberculosis, and so on. Some viral infections keep inflammation markers high for a long time. After them, people tend to have chronic pain. So it makes sense that the slow burn of metabolic disorders would also likely raise the risk of chronic pain.
Some studies have also tested hormones like leptin in people with chronic pain. Leptin is a hormone made by fat. It helps control appetite and how fast you burn fuel. Studies found that leptin levels are off more often in people with chronic pain than in healthy adults.
Last, more and more proof shows that metaflammation is a main cause of nerve damage in metabolic syndrome. These elevated cytokines (inflammation signals) do much of the nerve damage. People with metaflammation tend to have allodynia. That is pain from a touch that should not hurt.
So the slow burn of metabolic disorders may be a major cause of chronic pain. It also means chronic pain needs a very different plan than sudden pain. Interventional pain management takes this whole-picture view of chronic pain relief.
When extra body fat is part of the inflammation picture, weight is a medical target, not a cosmetic one. That is the reason behind our physician-led medical weight loss program in St. Louis.
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Frequently asked questions
Can inflammation cause chronic pain?
Yes. Inflammation that lasts, even at low levels, can keep pain going. New research shows that inflammation signals stay high in people with metabolic disorders. They change how mitochondria and nerves work. That helps turn short-term pain into chronic pain. The same pattern shows up with long-term infections such as HIV and tuberculosis. There, high markers come with more vague, lasting pain. Learn more: how inflammation and diet drive chronic pain.
How do I know if my pain is caused by inflammation?
Look for three clues. Pain with no clear injury behind it. Fatigue that does not let up. And allodynia, which is pain from a touch that should not hurt. People with metaflammation often look fairly healthy while living with all three. Inflammation markers can now be tested more precisely. They run higher in people with obesity or a metabolic disorder. Learn more: how belly fat pumps out pain signals.
Which diseases are associated with chronic inflammation?
Metaflammation raises the risk of heart disease, blood vessel disease and non-alcoholic fatty liver disease. It also raises the risk of chronic pain. That includes knee arthritis, low back pain and nerve damage, where inflammation signals harm the nerves. It likely also plays a part in pain we do not yet understand, such as fibromyalgia. Long-term infections keep the markers high as well. Learn more: diabetes, neuropathy and nerve pain.
How is chronic pain from metabolic inflammation treated?
Chronic pain needs a different plan than sudden pain. Interventional pain management takes that whole-picture view. When extra body fat is part of the inflammation picture, weight becomes a medical target, not a cosmetic one. Fat works like a hormone-making organ that drives inflammation up. That is the reason behind our physician-led medical weight loss program in St. Louis. Learn more: why medications, procedures and surgery may not fix chronic pain.
Dr. Gurpreet Singh Padda, MD, MBA, MHP
