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Overview

What Is Fibromyalgia?

Fibromyalgia is a long-term medical condition that causes widespread pain and increased sensitivity to touch or pressure. Common associated symptoms include fatigue, unrefreshing sleep, stiffness, headaches, and difficulty concentrating, sometimes called fibro fog. Fibromyalgia can affect people of any sex or age, although it is diagnosed more often in women. In simple terms, the fibromyalgia definition is a chronic condition involving changes in how the nervous system processes pain.

Symptoms

Fibromyalgia Symptoms

Fibromyalgia symptoms can vary in intensity and may change over time. Periods when symptoms become more intense are often called flares. What does fibromyalgia feel like? Many people describe a combination of widespread pain, poor sleep, low energy, and difficulty thinking clearly rather than one isolated symptom.

  • Widespread pain affecting multiple areas of the body.
  • Tenderness or increased sensitivity to touch or pressure.
  • Fatigue that can persist even after routine activities.
  • Unrefreshing sleep, also called nonrestorative sleep.
  • Difficulty concentrating or remembering information, often called fibro fog.
  • Headaches.
  • Muscle or joint stiffness.
  • Low mood, anxiety, or other mood symptoms.

Important

Do not assume every symptom is fibromyalgia

Fibromyalgia symptoms can overlap with other conditions. New, severe, or changing symptoms should be assessed by a healthcare professional instead of automatically being attributed to fibromyalgia.

Causes

What Causes Fibromyalgia?

Fibromyalgia is associated with increased sensitivity and altered processing of pain signals in the nervous system. No single cause has been established, and researchers think that genetic, physical, emotional, and environmental factors may interact. This means that the causes of fibromyalgia disease are usually better understood as possible contributors rather than one proven root cause.

  • Family history or genetic susceptibility may increase the likelihood of developing fibromyalgia.
  • A physical injury may precede the onset or worsening of symptoms in some people.
  • An infection or other illness may act as a trigger for symptoms.
  • Prolonged stress may contribute to changes in pain sensitivity and symptom severity.
  • Sleep disruption may worsen pain processing, fatigue, and other symptoms.
  • Coexisting chronic pain conditions may increase the burden of symptoms.

Risk Factors

Fibromyalgia Risk Factors

BACKGROUND FACTORS

Family history, being assigned female at birth, increasing age, and coexisting rheumatic or chronic pain conditions may be associated with a higher likelihood of fibromyalgia. These factors describe susceptibility and do not determine whether someone will develop the condition.

POTENTIAL CONTRIBUTORS

Physical trauma, prolonged stress, and ongoing sleep problems may contribute to symptom onset or worsening in some people. These factors can sometimes be addressed, but they are not proven causes in every individual.

Having a fibromyalgia risk factor does not mean that someone will develop the condition. People may develop fibromyalgia without an obvious trigger, while others may notice symptoms after an illness, injury, or prolonged period of stress.

Complications

Fibromyalgia Complications

  • Persistent pain and fatigue may lead to reduced physical activity.
  • Pain and fatigue can disrupt sleep and make rest less restorative.
  • Ongoing symptoms may contribute to anxiety or depression.
  • Fibromyalgia may make working or completing daily tasks more difficult.
  • Reduced activity and misunderstood symptoms may contribute to social isolation.
  • Untreated coexisting conditions may worsen disability and overall quality of life.

Get help

Some symptoms need separate assessment

Severe mood changes, thoughts of self-harm, chest pain, new weakness, or other new symptoms should not automatically be attributed to fibromyalgia. Seek prompt medical assessment for these concerns.

Diagnosis

How Is Fibromyalgia Diagnosed?

Fibromyalgia diagnosis is based on the overall symptom pattern, the duration and distribution of pain, fatigue or sleep symptoms, medical history, and a physical examination. There is no single blood test or scan that confirms fibromyalgia. Clinicians may order selected tests to look for other conditions that can cause similar symptoms.

  • A symptom and pain history helps identify the location, duration, and pattern of symptoms.
  • A physical examination assesses tenderness, movement, strength, and signs of other conditions.
  • A review of medications and other health conditions helps identify alternative explanations or contributing factors.
  • Screening for sleep and mood concerns helps identify problems that may worsen symptoms.
  • Selective laboratory tests may be used to evaluate alternative diagnoses, such as inflammatory or thyroid disorders.

Treatment & Management

Fibromyalgia Treatment and Management

Medication options and safety

Medicines may help selected symptoms such as pain, sleep problems, or mood symptoms, but the best choice depends on other conditions, possible interactions, side effects, and clinician guidance. Treatment aims to reduce symptoms and improve function rather than cure fibromyalgia. Regular reviews should consider benefits, side effects, activity tolerance, sleep, and daily goals; fibromyalgia treatments should be adjusted when needs change.

Outlook and Prognosis

Fibromyalgia Outlook and Prognosis

Fibromyalgia is usually a long-term condition, and symptoms may improve, worsen, or fluctuate over time. Although there is no simple cure, many people can improve function through individualized treatment, self-management, and coordinated care. A plan for recognizing and responding to flares can make daily activities more manageable.

  • Response to treatment can influence symptom control and daily function.
  • Better sleep quality may reduce fatigue and improve coping with pain.
  • A steady, appropriate activity level can support mobility and function.
  • Coexisting conditions may affect symptoms and the overall outlook.
  • Stress may contribute to symptom flares or greater symptom intensity.
  • Access to coordinated care can support long-term management.
  • Identifying and managing flares may help prevent avoidable disruption to daily life.

When Should You See a Doctor

When Should You See a Doctor for Fibromyalgia Symptoms?

  • Schedule a medical visit for widespread pain lasting several weeks.
  • Arrange an evaluation for persistent fatigue or unrefreshing sleep.
  • Seek medical advice when cognitive symptoms affect daily life.
  • Discuss symptoms that interfere with work, relationships, or usual activities.
  • Contact your clinician if symptoms worsen despite a management plan.

Seek urgent care

Do not wait with emergency symptoms

Seek urgent or emergency care for chest pain, sudden weakness or trouble speaking, severe shortness of breath, a high fever with concerning symptoms, or thoughts of self-harm. These are not typical symptoms to assume are caused by fibromyalgia.

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