Morton's Neuroma:
Dr. Naughton’s Ultimate Guide to Symptoms, Causes & Relief
"If you feel like you're constantly walking on a folded-up sock, or if burning pain shoots into your toes, it’s likely a nerve issue. The key to relief isn't just cushioning—it's creating space for that nerve to breathe."
Dr. William Naughton
Chief Medical Officer
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1. What Is Morton's Neuroma?
Morton's Neuroma (ICD-10 G57.6) is not a tumor, but a thickening of the tissue around one of the nerves leading to your toes. It typically affects the nerve running between the third and fourth toes.
This thickening occurs as a response to irritation or excessive pressure. As the tissue enlarges, it gets squeezed between the metatarsal bones like a grape between two stones.
2. Anatomy: The Nerve Pinch
Between each metatarsal bone in your foot, there are digital nerves that supply sensation to your toes. These nerves run underneath the deep transverse metatarsal ligament.
The Pinch
When the foot is squeezed (tight shoes) or bones drop (collapsed arch), the space for the nerve shrinks, entrapping it.
The Scar Tissue
The nerve becomes inflamed and builds up layers of fibrous scar tissue to protect itself—this is the "neuroma."
Clinical Success
A study published in JAPMA found that 95% of patients reported their foot health problem had been partially or completely resolved through the use of custom orthotics.
Source: JAPMA Study SummaryHow Orthotics Help Neuromas
- Spreads the metatarsal bones apart
- Lifts the nerve out of the pinch zone
- Prevents compression during push-off
3. Symptoms: Numbness & Burning
Unlike plantar fasciitis which hurts the heel, Morton's Neuroma hurts the forefoot and toes.
Folded Sock
Feeling like there is a pebble in your shoe or a fold in your sock that you can't smooth out.
Burning Pain
A sharp burning sensation radiating into the 3rd and 4th toes.
Tingling/Numbness
Toes may feel "asleep" or have pins-and-needles.
Mulder's Click
A palpable click when squeezing the foot from the sides.
Home Diagnosis: The "Mulder's Click" Test
The definitive clinical test for Morton's Neuroma.
- 1 Grip your foot around the metatarsal heads (the widest part).
- 2 Squeeze the foot firmly from the sides while pressing your thumb between the 3rd and 4th toes.
- 3 Result: If you feel a painful "click" or snap, you have tested positive for a neuroma.
4. Causes: Tight Shoes & Mechanics
Primary Causes
- Tight Footwear: High heels and narrow toe boxes squeeze the bones together.
- Flat Feet: Overpronation causes the forefoot to spread and shear.
- High Impact: Repetitive trauma from running aggravates the nerve.
Risk Factors
- Gender: Women are 8-10 times more likely to develop neuromas.
- Deformities: Bunions and hammertoes crowd the nerve space.
5. Comprehensive Treatments
Home Remedies
- Change Shoes: Switch to wide-toe-box shoes immediately.
- Ice: Apply ice for 15 mins to reduce nerve swelling.
- Toe Spacers: Use spacers to physically separate the toes.
Medical Therapies
- Metatarsal Pads: Lifts and spreads the bones to free the nerve.
- Cortisone Injections: Shrinks swollen tissue for temporary relief.
- Alcohol Sclerosing: Injections to shrink the nerve itself.
3 Stretches to Relieve Nerve Tension
Use fingers to gently pull toes apart. Hold 10s.
Why it works: Physically opens the space where nerve is pinched.
Roll golf ball under arch.
Why it works: Loosens structures pulling the forefoot tight.
Push against wall, leg back.
Why it works: Tight calves overload the forefoot.
6. The Definitive Treatment: Decompression
Why Bilt Labs Is The Superior Choice
To treat a neuroma without surgery, you must stop the metatarsal bones from crushing the nerve.
Metatarsal pads are often in the wrong spot, pressing directly on the pain.
We position the dome precisely behind the ball of the foot. By splaying the bones, we open up the nerve tunnel.
The pad lifts here to spread the bones there.
7. Prevention & Footwear Guidelines
For neuroma patients, shoes are the first line of defense.
The Orthotic Advantage: Adding a custom orthotic with a metatarsal pad to a wide sneaker is the most effective non-surgical way to treat this condition.
Wide Toe Box
Non-negotiable. Toes must wiggle.
Low Heel
Keep under 2 inches to reduce pressure.
Rigid Sole
Limits bending of toes that aggravates the nerve.
8. Frequently Asked Questions
Medical & Insurance Codes
View ICD-10 & SNOMED codes for insurance reimbursement
*These codes are provided for reference and insurance reimbursement purposes (HSA/FSA). Please consult your provider for official diagnosis.
Medical Disclaimer: The information provided in this guide is for educational purposes only and is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.
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