Chronic Leg Pain: Common Causes and Warning Signs

Editorially reviewed by: A to Zen Therapies Editorial Team in accordance with our Editorial Policy.

Leg pain that persists, repeatedly returns or gradually limits walking can have several possible causes. Muscles, tendons, joints, nerves, veins and arteries can all produce leg symptoms, and the pattern of pain often provides important clues.

Aching and stiffness after unfamiliar exercise may represent a temporary muscular problem. However, pain accompanied by swelling, skin changes, numbness, weakness or a predictable reduction in walking distance deserves medical assessment. Sudden symptoms may require urgent or emergency care.

This guide explains common causes of chronic leg pain, the patterns to notice and when professional assessment should not be delayed.

Persistent leg pain may arise from muscles, joints, nerves or circulation, so identifying the symptom pattern is an important first step.

Quick Answer

Chronic leg pain may be associated with a musculoskeletal injury, arthritis, nerve compression, peripheral neuropathy, chronic venous disease or reduced arterial blood flow.

The location and character of the pain—and whether it is affected by walking, standing, rest or spinal movement—can help guide assessment.

Seek urgent medical help for sudden one-sided swelling, a hot or discoloured leg, or rapidly worsening pain. Call emergency services if leg pain or swelling occurs with chest pain or breathlessness, or if a leg suddenly becomes cold, pale, numb or weak.

⭐ What is chronic leg pain? 

Chronic leg pain is discomfort that persists or repeatedly returns over an extended period. It is a symptom rather than a diagnosis, and “chronic” does not mean that the pain is untreatable.

Key Takeaways

• Chronic leg pain can originate in muscles, joints, nerves, veins or arteries.

• Pain triggered by walking and relieved by rest may indicate peripheral arterial disease.

• Aching, heaviness and swelling that worsen after standing may be associated with venous disease.

• Burning, tingling, numbness or electric sensations can indicate nerve involvement.

• Sudden one-sided swelling requires prompt assessment for a possible blood clot.

• A suddenly cold, pale, numb or severely painful leg is a medical emergency.

• Massage should not be performed when a blood clot, acute vascular problem, infection or fracture may be present.

• Treatment should be based on the underlying diagnosis rather than the description of pain alone.

Contents

1. What the Pattern of Leg Pain May Reveal

2. Musculoskeletal Causes of Chronic Leg Pain

3. Nerve-Related Leg Pain

4. Venous Conditions, Swelling and Leg Heaviness

5. Arterial Circulation Problems

6. Other Possible Causes

7. How Chronic Leg Pain Is Assessed

8. Treatment Depends on the Cause

9. When Chronic Leg Pain Requires Urgent Help

10. How A to Zen Therapies Can Help

    
    

What the Pattern of Leg Pain May Reveal

The word “pain” can describe very different experiences. Before an appointment, note exactly where the discomfort occurs and what makes it appear, improve or worsen.

Symptom pattern	Possible explanation	Appropriate next step
Pain after activity or a particular movement	Muscle, tendon, joint or bone problem	GP, physiotherapist or musculoskeletal assessment
Burning, tingling, numbness or electric pain	Nerve compression or peripheral neuropathy	Medical or neurological assessment
Aching, heaviness and swelling after standing	Chronic venous disease or varicose veins	GP or vascular assessment
Calf, thigh or buttock pain after a similar walking distance	Peripheral arterial disease	GP or vascular assessment
Sudden pain and swelling in one leg	Possible DVT or another acute condition	Urgent medical assessment
Cold, pale, numb or suddenly weak leg	Acute loss of arterial blood flow	Emergency treatment
Red, hot and tender skin with illness or fever	Possible infection	Urgent medical assessment

This table cannot diagnose the cause. Different conditions may overlap, and some people have more than one contributor to their symptoms.

📊 Evidence Snapshot: The NHS overview of peripheral arterial disease describes a typical pattern of aching leg pain during walking that settles after several minutes of rest. In contrast, the NHS guidance on varicose veins notes that venous symptoms can include aching, heaviness, swelling and skin changes, often becoming worse after prolonged standing.

Where the pain occurs, what triggers it and whether swelling, numbness or skin changes are present can help clinicians investigate the cause.

Musculoskeletal Causes of Chronic Leg Pain

Musculoskeletal pain arises from muscles, tendons, ligaments, joints or bones. Common possibilities include:

• an incompletely healed muscle strain

• tendon irritation or tendinopathy

• osteoarthritis of the hip, knee or ankle

• a stress fracture

• altered movement following an earlier injury

• pain referred from the lower back, pelvis or hip

• prolonged or rapidly increased exercise load

Musculoskeletal pain is often influenced by movement, loading or a particular position.

There may also be stiffness, tenderness, reduced range of motion or weakness.

However, these features are not exclusive to muscular injuries. Persistent night pain, unexplained swelling, worsening weakness or pain that is not behaving like the original injury should be reassessed. Our guide to seven indicators of slow recovery from physical injury explains other signs that a recovery plan may need review.

A physiotherapist or doctor may examine joint movement, strength, gait and tenderness. Imaging is not required for every case, but an X-ray, ultrasound or MRI may be considered when examination findings suggest a fracture, significant tendon injury, arthritis or another structural problem.

Nerve-Related Leg Pain

Nerve pain may feel burning, shooting, tingling or electric. Some people experience numbness, altered temperature sensation, hypersensitivity or shock-like sensations rather than a conventional ache.

Sciatica and lumbar nerve compression

Sciatica occurs when the sciatic nerve is irritated or compressed. Symptoms commonly travel from the lower back or buttock down the back of one leg and may reach the foot or toes. According to the NHS guide to sciatica, symptoms can include sharp or burning pain, tingling, numbness and weakness.

Disc problems, spinal stenosis and other changes affecting the lower back can irritate nerve roots. Leg pain may worsen with particular spinal movements, coughing or sneezing.

For complementary self-care information, read our guide to acupressure points for sciatica pain. Acupressure should not replace medical assessment when symptoms include weakness, progressive numbness or changes in bladder or bowel control.

Peripheral neuropathy

Peripheral neuropathy affects nerves outside the brain and spinal cord. Diabetes is a common cause, but vitamin deficiencies, alcohol-related nerve damage, certain medicines, infections and other medical conditions may also contribute.

Symptoms often begin in the feet and may affect both sides. They can include burning, numbness, pins and needles, altered balance or reduced awareness of injuries. A GP may review medicines, examine sensation and reflexes, and arrange blood tests or further neurological investigation.

💡 Expert Tip: Keep a one-week symptom record before your appointment. Note the pain’s exact location, whether it affects one or both legs, its relationship to walking or standing, and any swelling, skin changes, back pain, numbness or weakness. This is usually more useful than recording pain intensity alone.

Venous Conditions, Swelling and Leg Heaviness

Veins return blood from the legs towards the heart. If valves within the veins do not work effectively, blood may pool in the lower legs. This can contribute to chronic venous insufficiency and symptomatic varicose veins.

Possible symptoms include:

• aching or heaviness

• ankle or lower-leg swelling

• symptoms that worsen after prolonged standing

• enlarged or twisted surface veins

• itching or dry skin

• brown, red or otherwise altered skin colour around the ankles

• wounds that heal slowly

Symptoms may improve after resting with the legs raised, but this response does not establish a diagnosis. Swelling can also result from medicines, heart or kidney conditions, lymphatic problems, infection, injury and blood clots.

Readers in Connecticut experiencing persistent heaviness, swelling or visible veins may encounter a vein specialist near Waterbury when comparing local vascular services.

Inclusion of a provider does not confirm that symptoms are vascular or constitute a clinical endorsement. Sudden one-sided swelling should receive urgent medical assessment rather than a routine appointment.

Compression stockings should not be self-prescribed when arterial circulation may be impaired. The NHS notes that compression stockings for varicose veins are not suitable for people with certain arterial blood-flow problems, so appropriate sizing and clinical guidance matter.

One-Sided Swelling and Deep Vein Thrombosis

A deep vein thrombosis, or DVT, is a blood clot in a deep vein, usually in the leg. Symptoms may include throbbing pain in one calf or thigh, swelling in one leg, skin discolouration and swollen veins.

Sudden unilateral swelling could be a sign of blood clots, although other conditions can produce similar symptoms. A clinician may assess risk factors and arrange an ultrasound when DVT is suspected.

Seek urgent medical help if you believe you may have a DVT. If leg pain or swelling occurs with breathlessness or chest pain, call emergency services because this could indicate a pulmonary embolism. The NHS DVT guidance explains the principal symptoms and recommended action.

Do not massage a swollen or painful leg when DVT is possible.

Arterial Circulation Problems

Arteries carry oxygenated blood into the legs. Peripheral arterial disease, or PAD, occurs when fatty deposits narrow these vessels and restrict blood flow.

A characteristic symptom is intermittent claudication: an ache or cramping pain in the calf, thigh or buttock that appears after walking a relatively consistent distance and settles after resting. Other possible signs include:

• numbness or weakness

• shiny or unusually pale skin

• reduced hair growth

• slow-growing toenails

• cold feet

• wounds that do not heal

Recurring exertional leg pain should not be dismissed as an unavoidable part of ageing. A GP may check pulses and compare blood pressure at the ankle and arm using an ankle–brachial pressure index.

Pain in the foot or leg while resting, particularly at night, or a non-healing wound can indicate more severe arterial disease and requires prompt assessment.

A leg that suddenly becomes extremely painful, cold, pale, numb or weak may have experienced an acute interruption to its blood supply. This is an emergency: call emergency services.

Other Possible Causes

Chronic leg pain may also be associated with:

• inflammatory arthritis

• gout

• lymphoedema

• cellulitis or another infection

• recurring muscle cramps

• medication side effects

• diabetes-related complications

• vitamin or mineral deficiencies

• systemic inflammatory conditions

• less commonly, bone infection or a tumour

The NHS guidance on leg cramps notes that cramps may be associated with exercise strain, pregnancy, dehydration and medicines such as statins or diuretics. Recurrent cramping accompanied by swelling, numbness or sleep disruption warrants assessment.

Red, hot, painful and swollen skin—particularly with fever or feeling unwell—may represent cellulitis. This requires medical treatment and should not be massaged.

How Chronic Leg Pain Is Assessed

Assessment usually begins with a detailed history and physical examination. A clinician may ask:

• When did the symptoms start?

• Was there an injury?

• Does walking trigger the pain?

• Does rest relieve it?

• Is swelling present?

• Are symptoms unilateral or bilateral?

• Is there back, hip or joint pain?

• Is there numbness or weakness?

• Have there been skin or temperature changes?

• Which medicines and health conditions are relevant?

The examination may include gait, muscle strength, joint movement, reflexes, sensation, pulses, swelling and skin condition.

Depending on the suspected cause, further assessment might involve:

• blood tests

• X-ray or MRI

• musculoskeletal ultrasound

• nerve-conduction studies

• venous duplex ultrasound

• ankle–brachial pressure measurement

• arterial ultrasound or other vascular imaging

Not everyone needs every test. Investigations should follow the clinical pattern rather than being ordered indiscriminately.

Treatment Depends on the Cause

There is no single treatment for chronic leg pain. Management may include:

• activity modification and gradual rehabilitation for musculoskeletal injuries

• physiotherapy for movement, strength and functional recovery

• medicines or procedures for particular nerve conditions

• diabetes or nutritional management for peripheral neuropathy

• cardiovascular risk management and supervised exercise for PAD

• specialist vascular treatment for clinically significant venous disease

• antibiotics for bacterial infection

• anticoagulant medicine for a confirmed DVT

• treatment of an underlying inflammatory or joint condition

Avoid beginning compression, aggressive stretching, deep massage or strenuous exercise until an acute vascular problem, infection or fracture has been excluded.

When Chronic Leg Pain Requires Urgent Help

Seek urgent medical assessment for:

• sudden pain and swelling in one leg

• a red, hot or markedly discoloured leg

• rapidly worsening pain

• inability to bear weight following an injury

• fever or feeling unwell with red, painful skin

• new or progressive weakness

• a wound that is not healing

• severe pain while resting

Call emergency services for:

• leg pain or swelling with chest pain or breathlessness

• a suddenly cold, pale, numb, weak or severely painful leg

• major trauma, deformity or uncontrolled bleeding

• new numbness around the genitals or buttocks

• new loss of bladder or bowel control

• severe or worsening weakness affecting both legs

The final three neurological symptoms can indicate serious compression of nerves at the base of the spine and require emergency hospital assessment.

How A to Zen Therapies Can Help

A to Zen Therapies does not diagnose vascular disease, blood clots, infections, fractures or neurological disorders. New, unexplained or worsening leg pain should receive appropriate medical or physiotherapy assessment before complementary treatment.

Once serious causes have been excluded, selected therapies may support comfort, relaxation and a clinician-led recovery plan. Depending on the diagnosis and individual suitability, options may include sports massage, deep tissue massage or acupuncture in London.

Massage should not be applied over a suspected blood clot, acute inflammation, infection, open wound or painful varicose vein. These treatments do not restore blocked arterial blood flow, dissolve clots or repair nerve damage.

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Continue Exploring Pain and Rehabilitation

Understanding persistent leg pain often requires attention to movement, nerve symptoms, circulation and general health. Explore our Pain Management Hub, Exercise and Rehabilitation Hub and Massage Therapy Hub for evidence-informed articles about pain, mobility and complementary care.

Frequently Asked Questions

What is the most common cause of chronic leg pain?

There is no single most common cause for every age group. Muscle and joint problems are frequent, but nerve compression, peripheral neuropathy, venous disease and arterial disease are also important possibilities.

How can I tell whether leg pain is muscular or circulatory?

Muscular pain is often related to a particular activity, movement or tender structure. Arterial pain may appear predictably during walking and ease with rest, while venous symptoms may include heaviness, swelling and skin changes that worsen after standing. These patterns provide clues but cannot confirm a diagnosis.

Can varicose veins cause leg pain?

Yes. Varicose veins may be associated with aching, heaviness, itching, swelling and skin changes. However, visible veins do not prove that every episode of leg pain has a venous cause.

Is one swollen leg an emergency?

Sudden unexplained swelling in one leg requires prompt medical assessment because DVT is one possible cause. Call emergency services if swelling or leg pain occurs with chest pain or breathlessness.

Why does my leg hurt when I walk but improve when I stop?

Reproducible pain during walking that settles after rest may be intermittent claudication associated with PAD. Joint, spinal and muscular problems can also affect walking, so a clinical assessment is needed.

Can sciatica cause pain without severe back pain?

Yes. Sciatica may cause more prominent pain in the buttock and leg than in the lower back. Tingling, numbness or weakness may also occur.

Can massage help chronic leg pain?

Massage may help selected muscular pain and tension after contraindications have been excluded. It is inappropriate when DVT, acute arterial disease, cellulitis, an unhealed fracture or another serious condition may be present.

Should I use compression stockings for leg swelling?

Not without appropriate advice. Compression can be helpful for some venous conditions but may be unsuitable when arterial blood flow is impaired. A clinician or pharmacist can advise on suitability and correct sizing.

When should persistent leg pain be assessed?

Arrange an assessment if pain is worsening, repeatedly returning, disturbing sleep, limiting

walking or normal activities, or accompanied by swelling, numbness, weakness or skin changes. Do not wait if emergency symptoms are present.

References

• NHS — Deep vein thrombosis

• NHS — Peripheral arterial disease

• NHS — Sciatica

• NHS — Varicose veins

• NHS — Cellulitis

• NHS — Leg cramps

• Cleveland Clinic — Deep Vein Thrombosis

• Cleveland Clinic — Vascular Disease