28/05/2026
Does fibromyalgia cause hyperalgesia?
Widespread pain and hyperalgesia are characteristics of chronic musculoskeletal pain conditions, including fibromyalgia syndrome (FM).
https://pmc.ncbi.nlm.nih.gov
Fibromyalgia is associated with hypersensitivity but not ... - PMC - NIH
How do you know if you have hyperalgesia?
Hyperalgesia is an abnormally heightened sensitivity to pain, causing your nervous system to overreact to stimuli. Common symptoms include pain that feels disproportionately intense compared to the injury, pain that spreads to uninjured areas, and chronic discomfort that lingers long after a minor trigger has passed.
Key Signs & Symptoms
Symptoms can vary depending on the underlying cause (such as tissue damage, nerve injury, or opioid usage), but the primary indicators include:
Disproportionate Pain: A minor bump, scrape, or touch causes extreme, agonizing pain.
Widespread Discomfort: Pain sensations radiate or spread to areas of the body that were never originally injured.
Lingering Pain: The pain persists much longer than expected, long after an injury or inflammation has healed.
Altered Pain Sensations: The pain may be described as sharp, stabbing, aching, burning, or throbbing.
Abnormal Medication Response (Opioid-Induced Hyperalgesia): If taking opioids for chronic pain, increasing the dosage causes the pain to worsen instead of getting better.
Digestive Disruption (Visceral Hyperalgesia): When the condition affects the gut, symptoms can include severe abdominal pain, bloating, nausea, vomiting, constipation, or diarrhea.
Differentiating Hyperalgesia and Allodynia.
Hyperalgesia should not be confused with allodynia. While hyperalgesia makes a normally painful stimulus hurt significantly worse, allodynia causes pain in response to something that is not usually painful at all (like the gentle pressure of clothing or a light touch).
When to Seek Advice
Because hyperalgesia is a symptom of an underlying nervous system or medication issue rather than a standalone diagnosis, it is best evaluated by a healthcare professional. For reliable resources on pain management and to find local support, you can consult the UK’s National Health Service (NHS) for guidance on chronic pain and related conditions
PMC is a free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine (NIH/NLM).