Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Hills, MI
Last reviewed: May 2026
The most important clinical decision with Sesamoiditis Symptoms: How to Tell If Your Big Toe Pain Is Sesamoiditis isn’t which treatment to choose — it’s identifying which subtype you have first. Our podiatrists see patients treated for the wrong subtype for months before the correct diagnosis leads to full resolution. Call (810) 206-1402 — expert podiatric care across Michigan.
Sesamoiditis is inflammation of the sesamoid bones — two small bones embedded in the flexor hallucis brevis tendon beneath the 1st metatarsal head — and the surrounding soft tissue. It’s particularly common in dancers, runners, and people who wear high heels. Balance Foot & Ankle diagnoses and treats sesamoiditis in Howell and Bloomfield Hills, MI.
Sesamoiditis Symptoms
| Symptom | Description |
|---|---|
| Pain under the big toe joint | Dull or sharp pain directly under the 1st metatarsal head, often at the ball of the foot medially |
| Gradual onset | Builds over days to weeks of increased activity — unlike a sesamoid fracture which is sudden |
| Worsens with toe-off | Pain increases when pushing off (walking, running, stairs) as the sesamoids bear load through flexor tendon |
| Worse in flat shoes or barefoot | Low heel height increases load on sesamoids; high heels paradoxically reduce sesamoid loading |
| Point tenderness on sesamoids | Direct pressure on the tibial or fibular sesamoid reproduces pain; highly localizable |
| Swelling or bruising | Mild swelling under the 1st MTP joint; bruising suggests fracture rather than sesamoiditis |
| No radiation | Pain stays local — shooting into toe suggests neuritis; into arch suggests fascia |
Sesamoiditis vs. Sesamoid Fracture vs. Other Big Toe Pain
| Feature | Sesamoiditis | Sesamoid Fracture | Turf Toe | Hallux Rigidus |
|---|---|---|---|---|
| Onset | Gradual; activity-related | Sudden; after jump/fall | Sudden hyperextension mechanism | Gradual; worsens with age |
| Tenderness location | Plantar, under sesamoids | Plantar, under sesamoids (more intense) | Plantar + dorsal MTP joint | Dorsal 1st MTP joint |
| Swelling/bruising | Minimal | Often bruising | Significant; rapid onset | Bony enlargement; no acute swelling |
| X-ray finding | Normal or mild irregularity | Fracture line; compare bipartite | Normal or MTP subluxation | Joint space narrowing; dorsal osteophyte |
| MRI finding | Bone marrow edema; soft tissue swelling | Fracture line through sesamoid; edema | Plantar plate tear; capsule injury | Cartilage loss; osteophytes |
| Responds to offloading? | Yes — J-pad; heel raises | Partial — fracture requires NWB initially | Partial — buddy taping; stiff soled shoe | Carbon fiber Morton’s extension orthotic |
Bipartite Sesamoid — Not a Fracture
Approximately 10–30% of people have a bipartite tibial sesamoid — a normal anatomical variant where the sesamoid develops from two ossification centers and remains in two pieces. This is NOT a fracture. Key distinctions: bipartite sesamoids have smooth, rounded edges at the division; fractures have sharp, irregular edges. Both feet should be X-rayed — bipartite is usually bilateral, fractures are not.
Treatment for Sesamoiditis
| Treatment | Purpose | Notes |
|---|---|---|
| J-shaped felt or PPT pad | Offloads sesamoids by placing cutout directly under them; surrounding pad bears load | First-line; immediate relief; apply to insole or tape to foot |
| Metatarsal dome pad | Reduces forefoot loading overall | Adjunct to J-pad |
| Heel lift (5–10mm) | Reduces sesamoid load by shifting weight posteriorly | Simple; inexpensive; works immediately |
| Stiff-soled shoe / carbon fiber insole | Limits 1st MTP dorsiflexion (toe-off motion) that loads sesamoids | Morton’s extension carbon plate; essential for dancers and athletes |
| Activity modification | Reduce repetitive sesamoid loading (running, dancing, jumping) | 4–6 weeks typical; cross-train in pool or cycling |
| Corticosteroid injection | Reduce local inflammation around sesamoid | Effective for acute flares; limit to 2–3 injections to avoid avascular necrosis |
| NWB cast/boot | For stress fracture of sesamoid or severe sesamoiditis not responding | 4–6 weeks; usually curative |
| Sesamoidectomy | Surgical removal of sesamoid bone for chronic cases | Last resort; removes tibial sesamoid; risks hallux valgus (tibial) or varus (fibular) deformity |
Call Balance Foot & Ankle at (810) 206-1402 for sesamoiditis evaluation in Howell (4330 E Grand River Ave) or Bloomfield Hills (43494 Woodward Ave #208).
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OrthoInfo – AAOS: Sesamoiditis
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Doctor Answer
What are the symptoms of sesamoiditis?
Sesamoiditis presents as pain, tenderness, and swelling directly under the first metatarsal head at the ball of the foot — the location of the two sesamoid bones embedded in the flexor hallucis brevis tendon. Pain worsens with push-off during walking, running, and activities requiring toe extension. Morning stiffness is common. I perform a sesamoid axial view X-ray and MRI to assess for sesamoid fracture, avascular necrosis, and chondromalacia. Sesamoiditis typically affects dancers, runners, and high-heel wearers from repetitive forefoot loading.
Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has made him one of the most-followed foot & ankle educators on YouTube.