Overview

The compression or squeezing of a peripheral nerve can result in nerve compression syndromes, which cause symptoms such as pain, tingling, numbness, or weakness in the affected area. This condition can affect the nerves in the torso, limbs, and extremities can all be affected by these disorders. Carpal tunnel syndrome is one of the more well-known types, sciatica and ulnar nerve compression are also common. Repetitive motions can become a trigger for nerve irritation and in rare instances, neuropathy. Fortunately, many cases can be managed with at-home treatments that help alleviate symptoms and prevent further complications.

What are nerve compression syndromes?

Nerve compression syndromes, also known as nerve entrapment syndromes or compression neuropathies, occur when a nerve in the peripheral nervous system is squeezed or subjected to continuous pressure. These nerves connect distant body parts like your hands, feet, and limbs to the central nervous system, which comprises your brain and spine. The nerve's function is interfered with when it is compressed, resulting in pain, weakness, and other symptoms.

Activities that put pressure on the affected nerve may exacerbate symptoms. These are often caused by repetitive motions or injuries, such as typing or continuous lifting. Additionally, underlying medical conditions like rheumatoid arthritis, diabetes, and hypothyroidism can increase the likelihood of developing these syndromes.^{1, 2}

Symptoms of nerve compression

The symptoms often differ and depend on the specific nerve that has been affected and they usually appear in a gradual manner in most cases. They can range in severity, and they frequently get worse when doing tasks that put pressure on the nerve. 

Common symptoms include the following:

• Around the afflicted area, usually in joints like the wrist, elbow, or ankle, there may be pain, numbness, or tingling
• Limb weakness, which might make it difficult for you to carry out daily chores like lifting, gripping, or holding items
• Loss of muscle in the impacted region as a result of continuous compression
• In extreme circumstances, redness, oedema, and inflammation
• Reduced flexibility and difficulty with movement

If treatment is not received, these symptoms may significantly affect everyday activities by decreasing dexterity and movement.¹

Common types of nerve compression syndromes

Upper limb nerve compression syndromes

Carpal tunnel syndrome 

Carpal tunnel syndrome is the most commonly presenting and prevalent type of nerve compression, occurring when the median nerve is compressed at the wrist. It usually leads to symptoms such as tingling, numbness, or weakness in the hand and fingers.

Pronator teres syndrome 

In pronator teres syndrome, the median nerve is compressed at the point of the elbow, causing forearm and hand weakness, which is also similar to carpal tunnel syndrome, but it is also associated with discomfort in the forearm.

Radial tunnel syndrome 

Radial tunnel syndrome occurs when the radial nerve is compressed near the elbow, causing pain that radiates down the forearm and sometimes affects grip strength.

Suprascapular nerve entrapment

Suprascapular nerve entrapment involves compression of the suprascapular nerve at the shoulder. The symptoms here include weakness in shoulder movement and discomfort.

Thoracic outlet syndrome

In thoracic outlet syndrome, nerves in the lower neck and upper chest (thoracic outlet) are compressed, causing pain, tingling, and weakness in the neck, shoulder, and arm.

Ulnar nerve entrapment 

Ulnar nerve entrapment is also known as Cubital tunnel syndrome when it occurs at the elbow, or Guyon’s canal syndrome, when at the wrist, this is the compression of the ulnar nerve, causing numbness and weakness in the ring and pinky fingers.^1,2,3

Lower limb nerve compression syndromes

Meralgia paresthetica 

Meralgia paresthetica is caused due to pressure on the lateral femoral cutaneous nerve in the thigh, leading to burning pain or tingling on the outer thigh.

Peroneal nerve compression 

Peroneal nerve compression is pressure on the peroneal nerve in the lower leg that can cause foot drop, making it difficult to lift the front part of the foot, causing a tripping or a dragging foot when walking.

Pudendal nerve entrapment syndrome 

Pudendal nerve entrapment syndrome is a rare type and is when the pudendal nerve is compressed in the pelvic region. It is noted with pelvic pain, numbness, and discomfort in the genital area.

Sciatica

One of the most well-known conditions, sciatica is damage to or compression of the sciatic nerve. it causes a sharp, radiating pain from the lower back down to the leg.

Tarsal tunnel syndrome 

Compression of the tibial nerve in the ankle is the cause of tarsal tunnel syndrome, it presents as pain, tingling, or numbness in the heel or sole of the foot.¹

Causes of nerve compression syndromes

• Trauma and accidents: Compression syndromes can result from injuries including sprains, fractures, or dislocated joints that put pressure on nerves. Ankle, knee, and wrist sprains, as well as dislocated elbows and shoulders, are common examples
• Arthritis and problems with the bones: Disorders such as arthritis, fractures, and bone spurs can put extra strain on the nerves in the surrounding region
• Medical conditions: Long-term illnesses including diabetes and hypothyroidism are also prone to cause nerve compressions. Other medical conditions including cardiovascular illnesses may make a person more susceptible
• Herniated disks: A herniated disk in the spine could also be responsible for the compression of spinal nerves by pressing on them
• Tumours and masses: Cysts or benign tumours can grow close to nerves and may end up putting pressure on them
• Repetitive motions: Performing repetitive actions can cause nerve compression in particular body parts, particularly in occupational contexts. For example, typing with a lot of wrist movement could cause carpal tunnel syndrome
• Obesity and pregnancy: Excess body weight and pregnancy can both put extra strain on nerves, raising the possibility of compression syndromes²

Individuals at greater risk for nerve compression syndromes include:

• Age: Adults over 30 have a higher risk of these conditions occurring
• Gender: Certain nerve compression disorders, such as carpal tunnel syndrome, are more common in persons assigned female at birth (AFAB)
• Occupational hazards: There is a higher chance of nerve compression in jobs involving repeated motions, such as assembly line labour, construction, typing, and several sports
• Medical conditions: Circulation- or nerve-related disorders might make a person more susceptible²

Diagnosis

The diagnosis of nerve compression syndromes is done by a medical professional, who will do a complete assessment. This includes a physical examination to evaluate the patient's symptoms. In order to assess the severity of the condition, the doctor may ask the patient to complete certain exercises during the examination, such as grasping things, elevating their hands or feet, and picking up objects.

If the first examination points to a potential nerve-related issue, more diagnostic testing could be required. These may consist of:

• Electromyography (EMG) and  nerve conduction studies: These examinations evaluate the efficiency with which nerves communicate with muscles, assisting in the detection of any anomalies in nerve function
• Imaging tests: To see the afflicted region, methods like magnetic resonance imaging (MRIs), neuromuscular ultrasounds, or X-rays are used. These imaging methods can reveal compressed nerves and identify underlying issues, such as arthritis, ligament injuries, or fractures that may contribute to the nerve compression¹

Treatment options

Treatments that can help alleviate painful symptoms include:

• Nonsteroidal anti-inflammatory drugs (NSAIDs) for pain and inflammation
• Application of hot or cold compresses to soothe sore muscles
• Gentle exercises and movement to promote flexibility and healing
• Osteopathic treatments to help with pain relief
• Surgical intervention may be necessary for severe cases, such as those involving a slipped disk

Treatment for nerve compression frequently consists of avoiding activities that make symptoms worse. In order to relieve pressure on the injured nerve, the doctor could recommend certain nerve gliding exercises. Steroid injections or anti-inflammatory drugs may be used in certain situations to reduce inflammation. A brace or splint may also assist in reducing pressure and maintaining the arm in a neutral position.

Your doctor can also suggest a soft neck support for cervical radiculopathy in order to temporarily rest the neck, for those with minor abdominal nerve compression, symptoms are often alleviated by avoiding the activities that aggravate their illness. In case the situation is more serious than usual, a steroid injection could be suggested. In rare situations, surgery may be required to alleviate the pressure on the nerve.

If conservative treatments do not yield sufficient relief, surgical options may be considered. Surgery can address nerve compression by:

• Enlarging the nerve tunnel
• Removing tumours or cysts that may be pressing on the nerve
• Repairing, relocating, or transferring affected nerves

Surgery is generally regarded as a last resort for nerve compression syndrome, as not every individual with the condition qualifies for such procedures.¹

Prevention

For those at higher risk, specific actions can further mitigate risk:

• Adjust your keyboard while using it to keep the wrists flat
• Avoid resting on elbows for too long
• Stretching limbs throughout the day can be beneficial
• Take frequent breaks from typing as prolonged typing is harmful
• Use wrist rests with keyboards and mouse pads
• Wear braces or splints for support during strenuous activities

Additional preventive measures include:

•  Maintain a healthy weight
•  Practice good posture and avoid long periods in one position
•  Engage in strength and flexibility exercises^1,2

FAQs

What are nerve compression syndromes?

Nerve compression syndromes, also known as nerve entrapment syndromes or compression neuropathies, occur when a nerve in the peripheral nervous system is squeezed or subjected to continuous pressure.

What are the treatment options for nerve compression syndromes?

Conservative treatment like nonsteroidal anti-inflammatory drugs (NSAIDs) for pain and inflammation can be given or steroid injections or anti-inflammatory drugs may be used in certain situations to reduce inflammation. A brace or splint may also assist in reducing pressure and maintaining the arm in a neutral position.

Who is at greater risk for nerve compression syndromes?

Adults over 30 have a higher risk of these conditions occurring, jobs involving repeated motions, such as assembly line labour, construction, typing, and several sports, Circulation- or nerve-related disorders might make a person more susceptible.

Summary 

Nerve compression syndromes occur when peripheral nerves are squeezed, leading to symptoms such as pain, tingling, numbness, or weakness in the affected area. These syndromes can affect various nerves in the torso, limbs, and extremities, with carpal tunnel syndrome being the most recognised type. Repetitive motions, injuries, and certain medical conditions like diabetes and arthritis can exacerbate nerve compression. Symptoms typically emerge gradually and may worsen with activities that apply pressure to the affected nerve. Common types include sciatica, ulnar nerve entrapment, and thoracic outlet syndrome. Diagnosis often involves physical examinations and imaging tests, while treatment options range from at-home care and physical therapy to, in severe cases, surgical intervention. Preventive measures focus on avoiding repetitive motions, maintaining a healthy weight, and practising good posture.