Morton's Neuroma

That burning pain under the ball of your foot makes you wince with every step. You feel like you're walking on a bump or a bunched-up sock. Electric shocks radiate towards your toes. As physiotherapists specializing in biomechanical foot assessment, we regularly see patients concerned about these symptoms.

Good news: 80% of cases respond to conservative treatment without surgery.¹ The key is to act quickly.

What the science shows:

• Morton's neuroma is not a tumor; it's a thickening of the tissue around a nerve.
• Treatment works best within the first 4 months of symptoms.
• Exercises and shoe modifications significantly relieve pain.
• Physiotherapy combines nerve mobilization, strengthening, and education.

This guide explores the causes, symptoms, and effective treatments. To understand physiotherapy in general, consult our complete guide.

What is Morton's Neuroma?

Morton's neuroma is a fibrous thickening of the tissue surrounding an interdigital nerve (a nerve between the toes). It is usually located between the 3rd and 4th toes. Despite its name, it is not a tumor. It is an irritation or compression that causes painful inflammation.

The interdigital nerve transmits sensory information to your toes. It also controls the muscles of the foot. It's like an electrical wire carrying information.

When this nerve undergoes repeated compression, the tissue thickens to protect itself. This process creates the characteristic bump known as a neuroma.

In 80% of cases, the neuroma forms between the 3rd and 4th metatarsals (long bones of the foot). It can also appear between the 2nd and 3rd, but this is less common.

Morton's neuroma is one of the most common foot neuralgias. If you have other foot pains, consult our guide on joint pain to better understand your condition.

What are the causes of Morton's neuroma?

A neuroma develops when the interdigital nerve undergoes repeated pressure or microtrauma. The main causes include: narrow shoes, high heels, and mechanical overload of the forefoot.

Women between 40 and 60 years old are more affected. This is possibly due to frequently wearing narrow shoes. Shortened calf muscles also increase the load on the metatarsals.

If you have tight calves, Achilles tendonitis can be a related condition to watch for. A shortened calf muscle alters foot biomechanics and increases pressure on the forefoot.

Runners and athletes participating in sports with repeated impacts are particularly at risk. Shin splints are another common condition among runners who share certain biomechanical risk factors.

Foot deformities like hammer toes can also contribute to altering pressure distribution under the forefoot and increase the risk of neuroma. A complete biomechanical assessment will help identify these contributing factors.

What are the symptoms of Morton's neuroma?

Symptoms include burning pain under the ball of the foot, electric shocks, and numbness in the adjacent toes. The pain is typically located between the 3rd and 4th toes.

If you recognize these symptoms, seek consultation to prevent the condition from worsening.

It's important to distinguish Morton's neuroma from other forefoot pains. Metatarsalgia also causes pain under the metatarsals, but it is generally more diffuse and mechanical. Plantar fasciitis typically causes pain under the heel that improves after a few steps. Tarsal tunnel syndrome causes similar nerve symptoms, but on the inside of the foot and the sole.

If you also have a big toe deformity, consult our article on bunions (hallux valgus) to understand how foot deformities can contribute to overloading the forefoot.

How is Morton's neuroma diagnosed?

Diagnosis is based on your symptom history and a physical examination. Imaging tests are rarely needed, except to rule out other causes.

During the examination, the physiotherapist will:

• Gather your symptom history.
• Examine your joint mobility.
• Assess your nerve gliding.
• Test your movements, strength, and stability.

A lateral compression test of the metatarsals can reproduce the pain. Sometimes a click can be heard (Mulder's sign). This test helps confirm the diagnosis.

You do not need to see a doctor before consulting a physiotherapist. If necessary, your physiotherapist will refer you.

Ultrasound or MRI scans are used if the diagnosis is uncertain or to plan for surgery. However, these tests are rarely necessary.

How does physiotherapy help with Morton's neuroma?

Physiotherapy is effective in 80% of cases. It combines nerve mobilization, strengthening exercises, and education.¹ Treatment works best if started within the first four months of symptoms.

• Analysis of your joint mobility
• Nerve gliding assessment.
• Observation of your movements.
• Strength and stability tests.

Your physiotherapist will work to improve how your nerve glides. Think of it like oiling a squeaky door. These mobilizations help reduce sensitivity and pain.

Targeted exercises strengthen the intrinsic foot muscles (small internal muscles). This improves stability and prevents the metatarsal heads from collapsing, which can compress the nerve.

You will learn to better control your movements and gradually desensitize your nerve.

Your physiotherapist will teach you how to manage your activities to optimize healing.

One study shows that after 6 sessions combining massage, mobilization, exercises, and education, pain resolved and foot function improved.²

The physiotherapy approach for Morton's neuroma is similar to that used for other nerve conditions in the lower limb. If you also experience knee pain, consult our article on knee osteoarthritis to understand how joint conditions can affect the biomechanics of the entire lower limb.

The principles of manual therapy and therapeutic exercises also apply to other body regions. Consult our guide to physiotherapy to better understand how these approaches work.

What exercises help relieve Morton's neuroma?

Effective exercises include nerve gliding, calf stretches, foot muscle strengthening, and self-massage with a ball.

Start gently and increase gradually. If an exercise increases your pain, stop and consult a professional.

Weeks 1-2: Focus on gentle mobilizations and light stretches. The goal is to reduce nerve sensitivity without causing significant pain.

Weeks 3-4: Gradually add strengthening exercises. Start with simple movements like picking up a towel with your toes or performing active foot arches.

Weeks 5-8: Increase the intensity and complexity of exercises. Introduce weight-bearing exercises like calf raises, starting on two feet, then gradually progressing to one foot.

After 8 weeks: Maintain your progress with preventive exercises 2-3 times per week. If you run, gradually reintroduce running activities according to your physiotherapist's advice.

What shoes should you wear with Morton's neuroma?

Ideal shoes are wide at the front, with a rigid sole and a small heel (maximum 2-3 cm). Avoid narrow, pointed, or high-heeled shoes.

Orthotic insoles with metatarsal support (under the ball of the foot) are often effective. They help redistribute pressure and relieve the nerve. A podiatrist or physiotherapist can provide guidance.

Choosing the right shoes is a key part of the treatment. If you are a runner, ensure your running shoes have enough space for your toes and do not compress the front of your foot.

• Shop for shoes at the end of the day when your feet are slightly swollen.
• Try on shoes with the socks or hosiery you usually wear.
• Make sure there's at least 1 cm of space between your longest toe and the end of the shoe.
• Walk around the store to test for comfort.
• Don't buy shoes expecting them to stretch out; they should be comfortable immediately.

How long does it take for a Morton's neuroma to heal?

Healing typically takes 6 to 12 weeks with appropriate conservative treatment. Treatment is most effective when started within the first four months of symptoms.

If there's no significant improvement after 3 to 6 months, or if the neuroma is larger than 6 mm, surgery might be considered. The procedure involves either releasing or removing the neuroma. It's possible to have a numb area between the toes afterward, but this usually resolves within a few months.

The good news is that most patients do not require surgery.

Weeks 1-2: Focus on reducing acute pain with relative rest and changes to your footwear. Symptoms may fluctuate during this period.

Weeks 3-6: You should see progressive improvement with exercises and mobilizations. Gradually resume your activities, and you'll likely notice a significant decrease in electric shock sensations.

Weeks 7-12: You can return to normal activities and solidify your progress. Symptoms should be minimal or completely gone.

After 12 weeks: Continue with preventive exercises and monitor risk factors such as footwear and activities.

If you also experience chronic pain that lasts beyond this period, it may be helpful to consult our guide on chronic pain to better understand how persistent pain works and learn about suitable management strategies.

What can I do at home for Morton's neuroma?

To relieve your neuroma at home, temporarily reduce activities that cause pain. Wear wider shoes and engage in activities that put less stress on your feet, such as swimming.

• Temporarily reduce walking and running if they cause pain.
• Gradually resume activities as pain decreases.
• Practice swimming or cycling (these reduce stress on the affected area).

• If you stand for long periods or wait in line at the grocery store, take short sitting breaks.
• Avoid hard surfaces.

• Temporarily wear wider shoes.
• Use thicker insoles.
• Wear strapless sandals if needed.

• Apply for 15-20 minutes after activities if necessary.
• Use a towel between the ice and your skin.

• Roll a golf or tennis ball under your foot for 5-10 minutes daily.
• Gently massage the area between the affected toes.
• Stretch your toes by gently separating them with your fingers.

If you don't see any improvement after 10 days, consult a physiotherapist to help speed up your recovery.

Self-management strategies for Morton's neuroma are similar to those used for other foot and ankle conditions. If you also experience ankle pain, refer to our article on ankle sprains for additional management tips.

For active individuals looking to understand how to adjust their workouts, our article on low back pain in physiotherapy provides activity dosage principles that apply to all body regions. These principles of gradual progression are crucial for preventing recurrence.

When should you see a physiotherapist?

Consult a physiotherapist if you have the symptoms described or if your doctor has ruled out other causes. You do not need a medical prescription to do so.

• Burning pain under the ball of your foot.
• Numbness or electric shock sensations in your toes.
• Persistent symptoms despite shoe changes.
• Pain affecting your daily activities.
• No improvement after 10 days of self-management.

• Evaluate your condition in detail.
• Determine the exact cause.
• Create a personalized exercise program.
• Teach you how to manage your condition.
• Refer you to a doctor if necessary.

Physiotherapy is an effective first-line treatment. The sooner you seek help, the better your chances of recovery without surgery.

Physioactif physiotherapists have specialized expertise in biomechanical foot assessment and the treatment of nerve conditions. We use evidence-based approaches to optimize your recovery.

• Direct access without a medical prescription.
• Complete biomechanical foot assessment.
• Personalized treatment plan based on your goals.
• Specialized nerve mobilization techniques.
• Advice on footwear and orthotics tailored to your condition.
• Collaboration with podiatrists and orthotists as needed

If you also experience hip or knee pain, be aware that these joints can influence your foot's biomechanics. Consult our articles on hip osteoarthritis or pes anserine tendinopathy for a comprehensive understanding of your condition.

People suffering from patellofemoral pain syndrome or anterior knee pain often benefit from a comprehensive biomechanical assessment of the lower limb, including the foot. A holistic approach helps identify all contributing factors and optimize treatment.

For active children and adolescents who develop foot pain, consult our articles on Osgood-Schlatter disease and motor development delays to understand the specifics of pediatric conditions.

References

1. Schreiber K, et al. Conservative treatment of Morton's neuroma: a systematic review. J Foot Ankle Res. 2011.

1. The effects of a combined physical therapy approach on Morton's Neuroma. N-of-1 Case Report. Musculoskelet Sci Pract. 2020.

1. Morton's Neuroma. Physio-pedia.

1. Mechanical Diagnosis and Therapy and Morton's Neuroma: A Case Report. J Man Manip Ther. 2019.

1. Physical Medicine and Rehabilitation for Morton Neuroma. Medscape.