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Overview

What Is Chronic Pain?

Chronic pain is pain that lasts beyond the expected healing period, usually for three months or longer, or pain that keeps returning. Unlike short-term pain, it may continue after an injury or illness has improved. Chronic pain can affect people with an ongoing medical condition and people without one clearly identifiable injury. This chronic pain definition includes many experiences, from a constant ache to pain that comes and goes.

Symptoms

Chronic Pain Symptoms

Chronic pain may be constant or intermittent, and it may stay in one area or affect several parts of the body. Its severity and sensation can change over time, sometimes becoming worse with activity, stress, poor sleep, or illness. These chronic pain symptoms can affect movement, concentration, sleep, and everyday activities.

  • Aching or soreness may feel deep, dull, or persistent.
  • Burning pain may feel hot or irritating and can suggest nerve involvement.
  • Stabbing pain may feel sharp and occur in brief or repeated bursts.
  • Throbbing pain may pulse or beat in time with the heartbeat.
  • Stiffness can make joints or muscles harder to move.
  • Increased sensitivity to touch (allodynia) can make normally gentle contact painful.
  • Numbness may reduce feeling in part of the body.
  • Sleep disruption can make it difficult to fall asleep or stay asleep.
  • Fatigue may develop when pain repeatedly interrupts rest.
  • Difficulty with movement can limit walking, lifting, bending, or other activities.

Living with pain

Pain can affect more than the body

Persistent pain may contribute to irritability, anxiety, frustration, or low mood. These emotional effects do not mean the pain is imaginary; pain and emotional health can influence each other through the nervous system.

Causes

Causes of Chronic Pain

Chronic pain may result from arthritis, back disorders, nerve damage, migraine, fibromyalgia, or ongoing inflammation. It may also continue after an injury, operation, or illness has healed. In some cases, a pain disorder develops without one clear cause, even after a careful medical evaluation.

How the nervous system can keep signaling pain

Nociceptive pain is linked to tissue damage or inflammation, such as that caused by arthritis or an injury. Neuropathic pain is related to abnormal or irritated nerve signaling and may feel burning, electric, or shooting. Sometimes the nervous system remains more sensitive after the original trigger improves, so pain signals continue even when there is no ongoing tissue injury.

Risk Factors

Risk Factors for Chronic Pain

  • A prior injury or surgery can increase the chance of pain that persists during recovery.
  • Arthritis or another chronic illness may create ongoing inflammation or strain.
  • Nerve damage can lead to persistent burning, shooting, or altered sensations.
  • Older age is associated with a higher likelihood of several conditions that cause chronic pain.
  • Poor sleep can increase pain sensitivity and make recovery more difficult.
  • Prolonged stress may affect muscle tension, sleep, and the nervous system’s response to pain.
  • Depression or anxiety can increase the burden of pain and interfere with coping.
  • Physical inactivity can contribute to weakness, stiffness, and loss of conditioning.
  • Physically demanding work may involve repeated lifting, awkward positions, or strain.

Complications

Complications of Chronic Pain

  • Sleep problems may occur when pain makes it hard to fall asleep or remain asleep.
  • Fatigue can result from disrupted sleep and the ongoing effort of coping with pain.
  • Reduced mobility may limit walking, exercise, household tasks, or self-care.
  • Loss of physical conditioning can cause weakness and make activity more difficult.
  • Anxiety may increase when pain feels unpredictable or interferes with daily life.
  • Depression can develop when pain limits independence, enjoyment, or hope.
  • Medication-related problems may include side effects, interactions, or dependence risks.
  • Difficulty working may result from reduced concentration, movement, or stamina.
  • Social isolation can occur when a person withdraws from activities or relationships.

Get support

Persistent pain can affect mental health

Worsening mood, increasing substance use, or thoughts of self-harm need prompt professional help. These problems are not an inevitable part of living with pain, and support is available.

Diagnosis

How Chronic Pain Is Diagnosed

A clinician will ask when the pain began, where it occurs, and how it feels, including its severity, triggers, and relieving factors. They may also ask how it affects sleep, work, movement, and other activities; what treatments have been tried; and whether other symptoms are present. A detailed history helps guide the evaluation even when there is no single test for chronic pain.

Physical and neurologic examination

The examination may assess movement, strength, sensation, reflexes, tenderness, balance, and signs of an underlying condition. Blood tests or imaging, such as an X-ray or MRI, may be ordered when the history or examination suggests a specific cause. Normal test results do not invalidate a person’s pain or mean that the symptoms are not real.

Treatment & Management

Chronic Pain Treatment and Management

Chronic pain treatment is tailored to its possible cause, type, severity, health history, and the person’s goals. A plan often combines several approaches rather than relying on one cure. The aim may be chronic pain relief, better function, improved sleep, and greater participation in daily life.

SELF-MANAGEMENT

Self-management and rehabilitation: Pacing activities, gradually increasing movement, physical or occupational therapy, sleep support, stress reduction, and cognitive behavioral therapy may help improve function and coping. These pain management techniques should be adjusted to the person’s abilities and medical conditions.

CLINICAL CARE

Medical and specialist treatment: Options may include non-opioid medicines, condition-specific medicines, injections, nerve procedures, or assessment by a chronic pain specialist. A clinician should explain expected benefits, possible risks, and alternatives before treatment begins.

Medication safety

Use treatments as directed

Opioids, sedating medicines, supplements, injections, and procedures require clinician guidance because they can have side effects or interact with other treatments. Treatment goals may include improved quality of life and function even when complete pain elimination is not possible.

Outlook and Prognosis

Outlook and Prognosis for Chronic Pain

The outlook depends on the cause, how long the pain has been present, overall health, sleep, mood, and response to treatment. Some people improve substantially, while others need continuing chronic pain management to control symptoms and protect daily function. Regular follow-up can help adjust the plan as needs and goals change.

When Should You See a Doctor

When Should You See a Doctor for Chronic Pain?

  • Arrange a medical visit if pain lasts longer than expected after an injury.
  • Seek an evaluation for pain that keeps recurring without a clear explanation.
  • Contact a clinician if pain is worsening or changing noticeably.
  • Make an appointment when pain disrupts sleep, work, self-care, or daily activities.
  • Seek medical advice for new numbness, weakness, or changes in movement.
  • Discuss other treatment options if current care does not provide adequate relief.

Seek urgent care

Some pain symptoms need immediate attention

Seek urgent or emergency care for sudden severe pain with chest pressure, trouble breathing, fainting, new paralysis or confusion, or loss of bladder or bowel control. Get immediate help for thoughts of self-harm, including by contacting local emergency services or a crisis service.

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Symptoms

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