Heel Fat Pad Syndrome: When Cushioning Itself Breaks Down

What is heel fat pad syndrome?

Under the heel bone sits a specialised fat pad - a network of fat cells enclosed in fibrous chambers that acts as the heel's natural shock absorber. When this structure degenerates or is damaged, it loses its ability to cushion impact.

The result is diffuse, central heel pain - different from plantar fasciopathy, which is more anterior and specific to the fascia attachment. Fat pad pain is often described as a deep bruised feeling directly under the heel.

Who gets it?

• Older runners - the fat pad naturally atrophies with age
• Runners who recently switched to minimalist shoes
• Those who run predominantly on very hard surfaces
• Runners with a high BMI - increased body weight compresses the fat cells over time
• Anyone who received a corticosteroid injection into the heel - this can damage the fat pad directly

What helps

1. Extra cushioning

Heel cups or cushioned insoles that replace some of the lost shock absorption. This is one of the few running injuries where passive cushioning has direct therapeutic value.

2. Soft surfaces

Grass, track, or trail surface during the recovery phase significantly reduces impact per step.

3. Intrinsic foot strengthening

Stronger foot muscles share the load that otherwise concentrates on the fat pad. Towel scrunches, toe spreads, short foot exercise.

4. Calf and Achilles loading

A stronger calf complex absorbs more shock before it reaches the heel. Heel raises, both eccentric and concentric. 3 sets of 15.

5. Gait modification

Reducing footstrike heel loading - shorter stride, higher cadence, slight forward lean - reduces the direct impact per stride.

What to avoid

• Barefoot running on hard floors
• Minimalist shoes until fully resolved
• Heel-striking with an overextended stride

Timeline

4–8 weeks with appropriate footwear and load management. The fat pad does not regenerate completely once severely degenerated, so management focuses on unloading and supporting the remaining tissue.