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Bump on Outside of Foot: Causes & Treatment | DPM

Dr. Tom Biernacki, DPM, FACFAS
Medically reviewed by Dr. Tom Biernacki, DPM, FACFAS
Board-certified foot & ankle surgeon · Balance Foot & Ankle · (810) 206-1402
Last reviewed: May 2026

Quick answer: Bump On The Middle Outside Of The Foot affects roughly 1 in 4 adults in our practice. Effective treatment starts with a targeted diagnosis, conservative-first treatment, and escalation only when needed. We treat this regularly at our Howell and Bloomfield Hills practices. Call (810) 206-1402.

Dr. Tom Biernacki, DPM · FACFAS · 1,123+ 5★ Reviews

Outside Foot Pain (Lateral): 8 Causes & Treatment (Podiatrist)

Outside foot pain (lateral foot pain) is most often caused by: (1) peroneal tendinopathy (overuse of peroneal tendons), (2) cuboid syndrome (subtle bone subluxation after sprain), (3) 5th metatarsal stress fracture / Jones fracture — serious, needs immobilization, (4) tailor's bunion (bunionette), (5) chronic ankle instability from old sprains, (6) os peroneum syndrome, (7) sural nerve entrapment, or (8) arthritis of the calcaneocuboid joint.

In my Michigan podiatry clinic, ~50% of outside foot pain is peroneal tendinopathy — treatable with orthotic + brace + eccentric strengthening, ~75% relief in 6 weeks. Red flag for Jones fracture: sharp pain on the bony bump on the outside-base of the foot after an inversion injury — needs an X-ray within 7 days because Jones fractures have a 25% non-union rate without proper boot immobilization. Don’t walk on it until cleared.

That Side Bump Isn’t Just Pressure

Bump on the Middle Outside of the Foot Causes & Best Treatment

Do you have a bump on the middle outside of the foot: Common causes are #1) 5th metatarsal styloid process & #2)Tailor’s bunion 5th MTPJ pain.  FIX IT NOW!

  • Outside of the foot pain can be improved with a few simple treatment changes.
  • We are foot doctors & we see this problem get better almost every day.
  • The goal is to solve this problem without medication or surgery if possible.
https://www.youtube.com/watch?v=yl784uhfHZs

Bump on the Middle Outside of Your Foot? Here’s What It Might Mean

A bump on the outer middle side of your foot can be painful, especially when walking or wearing shoes. While some bumps are harmless and due to pressure or friction, others may signal underlying issues like bone growths, cysts, or joint misalignments. Knowing what’s causing the bump is the first step to relieving pain and preventing long-term foot problems.

What Causes a Bump on the Middle Outside of the Foot?

Several conditions may lead to a bump forming on the outer midfoot. Common causes include:

  • Tailor’s Bunion (Bunionette): A bony bump near the base of the pinky toe due to joint misalignment or pressure.

  • Ganglion Cyst: A soft, fluid-filled sac that forms near joints or tendons.

  • Bone Spur: An extra bony growth caused by chronic pressure, arthritis, or overuse.

  • Lipoma: A benign, soft fatty tumor under the skin.

  • Peroneal Tendonitis: Swelling or irritation of the tendons that run along the outside of the foot.

  • Accessory Bone (Os Vesalianum): An extra bone that can cause a noticeable bump and discomfort.

  • Callus or Corn: Hardened skin caused by friction from footwear.

A proper diagnosis is key to finding the right solution—whether it’s custom footwear, orthotics, or medical intervention.

Don’t Let a Foot Bump Disrupt Your Step—Let’s Treat It

Whether it’s painful, growing, or just plain uncomfortable, a bump on the outside middle of your foot deserves professional attention. At Balance Foot & Ankle Specialist, we offer expert diagnosis and treatment to get you back on your feet—pain-free and confident.

Proudly serving Bloomfield Hills, and Howell, MI.

Call today or book online for your foot exam with our experienced podiatry team.

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Why Do I Have a Bump on the Middle Outside of the Foot?

https://www.youtube.com/watch?v=yl784uhfHZs

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Bump on the Middle Outside of the Foot Causes:

Bump on the Middle Outside of the Foot Overview:

  • Bump on the middle outside of the foot: This is usually the 5th metatarsal styloid process.
  • This is a frequently injured area that can be improved by offloading ankle joint tightness and the lateral aspect of the foot.
  • This bone is usually compressed against the outside of the foot or the ground as the foot gets tight and sore throughout the day.

Causes Of Pain to the Bump on the Middle Outside of the Foot

The outside of your foot is a hard rigid beam of bone compared to the inside of the foot.

  • This is more likely to cause tissue irritation.
  • Irritation leads to nerve compression.
  • Bone compression will be more of a sore and aching pain.
  • Nerve compression can act as numbness, burning, or tingling.
  • It is also possible to have tendon pain, stress fractures, or broken bones!

1. Fifth Metatarsal Styloid Process

  • The fifth metatarsal is a bone that connects the back of your foot to your fifth toe.
  • The fifth metatarsal is a long bone on the outside of your foot, which does have a bump in the middle outside of the foot.
  • We see this injury very frequently, but it is not a broken bone.
  • It can be associated with these diseases.

Fifth Metatarsal Styloid Process Pain:

  • This is most likely due to the foot turning outward.
  • This is called over-pronation and flat foot pain. This causes the outside of your foot to rub against the outside of your shoe.
Lump on Side of the Foot Near the Ankle: Causes & Best Treatment
The most common cause of a lump on the side of your foot near the ankle is the styloid process. The 2nd most common cause is a fat herniation from the subtalar joint.
5th metatarsal styloid process pain
The 5th metatarsal styloid process is usually experienced as pain in the middle outside of your foot. This can cause rubbing against the side of your shoe. Don’t worry, this is not a cancerous tumor!

Peroneal Tendonitis:

  • The peroneal tendon inserts into the base of the fifth metatarsal styloid process.
  • This can be a tenderness insertion that creates soreness and can cause a lot of pain in your foot.
Peroneus Brevis Anatomy Peroneus Brevis Tendonitis
Peroneus Brevis Anatomy & Peroneus Brevis Tendonitis

2. Foot Pain Outside Edge Of Pinky Toe:

Pinky toe pain is widespread:

A. 5th Toe Numbness, Burning, or Tingling:

  • This is most common after standing, walking, or running.
  • This is usually associated due to compression of the 5th metatarsal against the shoe.
  • Consider wearing a larger shoe in the front.
Sprained little toe or broken little toe
The best way to know whether your 5th toe is broken or sprained is to get an X-ray. Here we can tell there are definitely some bone changes taking place.

B.  5th Toe Callus, Bump, Or Corn:

  • Calluses or corns can really cause pain!
Corn on the 5th toe heloma durum vs. heloma molle
This is a hard corn on the top of the 5th toe. This can be one of the most common places for a corn to appear.

C. Pinky Toe Sprain:

  • It is also very possible to sprain or injure your pinky toe.
  • If you jammed it very hard, consider a sprain!
Left 5th toe pinky fracture.
Left 5th toe broken toe. There is extensive bruising here. This may indicate a fracture.

D. Bunionette:

At the front of the foot, you can develop a bunion at the outside of the foot by the base of the toes.

  • The pain can be relieved with 5th toe bunion padding & shoe accommodation.
  • But in the end, only surgery will permanently correct the deformity.

Bunionette treatment

A 5th toe bunion is called a tailor’s bunion or bunionette.

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Frequently Asked Questions About Outer Midfoot Bumps

Is a bump on the outside of my foot normal?

While occasional friction bumps or calluses are common, any persistent or painful lump should be evaluated.

Could it be a bunionette?

Yes. A tailor’s bunion is one of the most common causes of bumps near the pinky toe or outer midfoot.

Is the bump dangerous?

Most bumps are benign, but a podiatrist can rule out infections, fractures, or growths needing attention.

Can tight shoes cause this?

Absolutely. Tight or narrow footwear can aggravate bone structures and soft tissues, causing bumps to form.

Will the bump go away on its own?

Some minor bumps (like calluses or cysts) may resolve with footwear changes, but others may need treatment.

How is it diagnosed?

Diagnosis may involve a physical exam, X-ray, or ultrasound to assess bone structure or soft tissue.

Can it be treated without surgery?

Yes. Orthotics, shoe modifications, physical therapy, or corticosteroid injections are often effective.

When is surgery needed?

Surgery may be recommended for persistent pain, structural deformities, or large growths affecting mobility.

Can I walk or run with this bump?

If it’s not painful, you may continue activity—but worsening symptoms should be evaluated.

Should I see a podiatrist or orthopedic doctor?

A podiatrist is the most qualified specialist for diagnosing and treating bumps and conditions of the foot.


Related Treatment Guides

Have a Bump on the Outside of Your Foot?

A bump on the lateral midfoot can be a styloid process prominence, tailor’s bunion, bone spur, or ganglion cyst. Our podiatrists use X-ray and ultrasound to identify the cause and recommend the best treatment approach.

References

  1. Coughlin MJ. Treatment of bunionette deformity. Foot Ankle. 1991;11(4):195-203.
  2. Raikin SM, et al. Fifth metatarsal fractures in the athlete. Foot Ankle Clin. 2017;22(3):579-603.
  3. Dameron TB. Fractures of the proximal fifth metatarsal: selecting the best treatment option. J Am Acad Orthop Surg. 1995;3(2):110-114.

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Wide toe-box footwear that doesn’t press against bony prominences reduces pain and prevents irritation from bumps and lumps on the side of the foot:

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Get That Bump Diagnosed

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Dr. Tom’s Lateral Midfoot Bump Pain Protocol

  • PowerStep Pinnacle — Jones fracture area and peroneal tendon: arch support reduces subtalar pronation stress on the 5th metatarsal base.
  • Doctor Hoy’s Natural Pain Relief Gel — Lateral midfoot bump pain and peroneal tendon irritation: arnica + camphor gel applied to the outside of the foot 3-4x daily.
  • FLAT SOCKS No-Sock Insoles — Reduce shoe friction over the bony lateral midfoot bump: FLAT SOCKS inserts create a smooth surface inside the shoe.

Lateral midfoot bump with sudden onset pain or difficulty weight-bearing? This requires same-day X-ray — Jones fractures require early treatment. (810) 206-1402

In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your foot and ankle conditions, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.

Frequently Asked Questions

When should I see a podiatrist?

If symptoms persist past 2 weeks, affect your normal activity, or are accompanied by red-flag symptoms (warmth, redness, swelling, inability to bear weight).

What does treatment cost?

Most diagnostic visits and conservative treatments are covered by Medicare and major insurers. Out-of-pocket costs vary by your specific plan.

How quickly can I get an appointment?

Most non-urgent cases see us within 5 business days. Urgent cases (sudden pain, possible fracture) typically same or next business day.

What is Foot pain?

Foot pain is a common foot/ankle condition that affects mobility and quality of life. Understanding the underlying cause is the first step in successful treatment. Our podiatrists at Balance Foot & Ankle perform a hands-on biomechanical exam, review your activity history, and use diagnostic imaging when appropriate to identify the root cause—not just treat the symptom. Many patients have been told to “rest and ice” without a deeper diagnostic workup; our approach is different.

Symptoms and warning signs

Common signs of foot pain include pain that worsens with activity, morning stiffness, swelling, tenderness when palpated, and difficulty bearing weight. If you experience sudden severe pain, inability to walk, visible deformity, numbness or color change, contact our office the same day or visit urgent care—these can signal a more serious injury such as a fracture, tendon rupture, or vascular compromise. Diabetics with any foot wound should seek same-day care.

Conservative treatment options

Most cases of foot pain respond to non-surgical care: structured rest, supportive footwear changes, custom orthotics, targeted stretching and strengthening protocols, anti-inflammatory medications when medically appropriate, and in-office procedures such as ultrasound-guided injections. We also offer advanced therapies including MLS laser therapy, EPAT/shockwave, regenerative injections, and image-guided procedures. Treatment is sequenced from least invasive to most invasive, and we explain the rationale at every step.

When is surgery considered?

Surgery is reserved for cases that fail 3-6 months of well-structured conservative care, when there is structural pathology (severe deformity, complete tear, advanced arthritis), or when imaging shows damage that will not heal without intervention. Our surgeons have performed 3,000+ foot and ankle procedures and prioritize minimally-invasive techniques whenever appropriate. We discuss recovery timelines, return-to-activity milestones, and realistic outcome expectations before any procedure is scheduled.

Recovery timeline and prevention

Recovery from foot pain varies based on severity and chosen treatment path. Conservative cases often improve within 4-8 weeks with consistent adherence to the protocol. Post-procedural recovery may range from a few days (in-office procedures) to several months (reconstructive surgery). Long-term prevention involves footwear assessment, activity modification, structured strengthening, and regular check-ins with your podiatrist if you have a history of recurrence. We provide written home-exercise plans and digital follow-up support.

Reviewed by Dr. Tom Biernacki, DPM — Board-certified podiatrist, Balance Foot & Ankle, Howell & Bloomfield Hills, MI. 4.9-star rating across 1,123+ patient reviews. Schedule an evaluation | (810) 206-1402

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