Foot Bursitis: Symptoms, Types & Treatment | Podiatrist MI

Bursitis in the foot is often mistaken for plantar fasciitis, Achilles tendinitis, or arthritis because the pain patterns overlap significantly. Many patients who come to us having self-treated for months with plantar fasciitis stretches are actually dealing with bursitis — a different problem requiring a different treatment approach. Getting the right diagnosis is the first step to getting lasting relief.

What Is Foot Bursitis?

A bursa is a tiny, fluid-filled sac found throughout the body near joints, tendons, and bones. Its job is to reduce friction between moving structures. The foot contains numerous bursae, and any of them can become inflamed — a condition called bursitis. When a bursa becomes inflamed, it swells with excess fluid, becomes tender, and can make walking painful.

There are two types of bursae in the foot: anatomical bursae (present from birth) and adventitious bursae (the body creates these in response to chronic pressure or friction). Adventitious bursae often develop under bunions, calluses, or bony prominences.

https://www.youtube.com/watch?v=6c1ZBbXfqXA

Types of Foot Bursitis

Retrocalcaneal Bursitis

The most common form of foot bursitis. The retrocalcaneal bursa sits between the Achilles tendon and the heel bone (calcaneus). Inflammation causes pain at the back of the heel, often confused with Achilles tendinitis. Common in runners, people with Haglund’s deformity (a bony bump on the back of the heel), and those who wear stiff-backed shoes.

Subcalcaneal Bursitis

The subcalcaneal bursa lies between the heel bone and the skin on the bottom of the foot. Inflammation mimics plantar fasciitis — pain at the bottom of the heel with the first steps in the morning. Distinguished by the specific tenderness location (directly at the heel fat pad rather than the plantar fascia insertion).

Intermetatarsal Bursitis

Bursae between the metatarsal heads (ball of foot) can become inflamed, causing pain in the forefoot similar to Morton’s neuroma. The primary distinction: bursitis tenderness is directly over the ball of the foot; neuroma pain is between the toes.

Big Toe Bursitis (Bunion Bursa)

Chronic friction from a bunion deformity triggers the formation of an adventitious bursa over the prominent joint. This becomes a red, warm, swollen bump on the side of the big toe that can be acutely painful with shoe pressure.

• Retrocalcaneal bursitis: pain at the very back of the heel where the Achilles attaches
• Subcalcaneal bursitis: pain at the bottom of the heel (similar to plantar fasciitis)
• Intermetatarsal bursitis: ball-of-foot pain between metatarsal heads
• Big toe bursitis: red, swollen, tender bump over the bunion or first MTP joint

What Causes Foot Bursitis?

• Repetitive mechanical stress — running, jumping, prolonged standing on hard surfaces
• Tight or stiff-backed shoes that press against the heel (retrocalcaneal bursitis)
• Structural deformities — Haglund’s deformity, bunions, hammertoes
• Direct trauma — a single significant blow to the heel or forefoot
• Inflammatory conditions — gout, rheumatoid arthritis, or psoriatic arthritis can inflame bursae
• Abnormal foot biomechanics — overpronation or high arches increase stress on bursae
• Sudden increase in activity level

How Is Foot Bursitis Diagnosed?

Diagnosis begins with a thorough clinical examination. We assess the exact location of tenderness, look for swelling or warmth, and test range of motion. Diagnostic tools include:

• Diagnostic ultrasound — our preferred tool; directly visualizes the bursa, shows fluid within it, and can distinguish bursitis from tendinitis or plantar fasciitis in real time
• MRI — more detailed soft tissue imaging; used when ultrasound findings are inconclusive or surgical planning is being considered
• X-rays — evaluates for bony contributors like Haglund’s deformity or bone spurs

Foot Bursitis Treatment

Conservative Treatment (First Line)

• Rest and activity modification — reduce or eliminate activities that aggravate the bursa
• Ice therapy — 15–20 minutes several times daily to reduce inflammation
• NSAIDs — oral ibuprofen or naproxen to manage pain and inflammation
• Footwear modification — switch to shoes with soft heels and adequate cushioning; avoid stiff-backed shoes for retrocalcaneal bursitis
• Heel cups or cushioning insoles — reduce direct pressure on the inflamed bursa

In-Office Treatments

• Corticosteroid injection — ultrasound-guided injection directly into the bursa; highly effective for rapid pain relief; effect typically lasts 2–6 months
• Aspiration — draining excess fluid from the bursa when it’s significantly distended
• Physical therapy — stretching and strengthening to address underlying biomechanical contributors; particularly important for retrocalcaneal bursitis
• Custom orthotics — redistributes mechanical stress and corrects gait abnormalities driving the bursitis

Surgical Treatment

Bursectomy (surgical removal of the inflamed bursa) is reserved for cases that fail 6+ months of conservative treatment. For retrocalcaneal bursitis associated with Haglund’s deformity, bone removal is often combined with bursa removal. Most patients achieve excellent results with surgery when indicated.

Frequently Asked Questions

How long does foot bursitis take to heal?

Mild foot bursitis typically responds to conservative treatment within 2–4 weeks. More significant cases may take 6–12 weeks. Chronic bursitis that has been present for months may require corticosteroid injections or physical therapy before resolving. Haglund-related bursitis often needs longer treatment and sometimes surgery.

Is walking good or bad for foot bursitis?

Moderate walking may be tolerable for mild bursitis, but activities that directly compress the inflamed bursa — running, jumping, hill climbing — should be avoided. Pay attention to pain: if walking causes significant pain, rest is better than pushing through it. A temporary switch to pool walking or cycling can maintain fitness while the bursa heals.

Can foot bursitis be cured permanently?

Yes, with proper treatment that addresses both the inflammation and the underlying cause (biomechanics, footwear, or structural deformity). Simply injecting cortisone without addressing the root cause leads to recurrence. Custom orthotics, proper footwear, and sometimes surgical correction of contributing structural problems provide the most durable results.

Is retrocalcaneal bursitis the same as Haglund’s deformity?

These two conditions are related but distinct. Haglund’s deformity is a bony enlargement on the back of the heel bone. Retrocalcaneal bursitis is inflammation of the bursa between that bone and the Achilles tendon. Haglund’s deformity often causes retrocalcaneal bursitis, but bursitis can also occur without a Haglund’s spur.

Sources

• Schepsis AA, Jones H, Haas AL. Achilles tendon disorders in athletes. Am J Sports Med. 2002.
• Flamme CH, et al. Relative validity of ultrasonography in the diagnosis of hindfoot disorders. Arch Orthop Trauma Surg. 1998.
• American College of Foot and Ankle Surgeons. Heel Bursitis. acfas.org. 2025.
• Järvinen TA, et al. Achilles tendon disorders: etiology and epidemiology. Foot Ankle Clin. 2005.

When Shoes Aren’t Enough — Dr. Tom’s Top 9 Orthotics

About 30% of patients I see for foot pain need MORE than a great shoe — they need a structured insole. Below: my complete 2026 orthotic ranking with pros, cons, and the specific patient I’d give each one to.