Plantar Fasciitis vs. Heel Spurs: What's Actually Causing Your Heel Pain?

Many people with heel pain are told they have a "heel spur" and assume that bony growth is the source of their misery. The full story is more interesting — and more hopeful.

What's a heel spur?

A heel spur is a small calcium deposit that builds up on the underside of the heel bone, usually where the plantar fascia attaches. It develops over months or years of strain on the fascia. Here's the surprise: heel spurs themselves are usually painless. Roughly one in ten people has one, and most never know. Many people with severe heel pain have no spur at all, and many with large spurs have no pain.

So what's causing the pain?

In the vast majority of cases, the pain comes from plantar fasciitis — inflammation and micro-tearing of the fascia itself. The spur is a result of the same chronic strain, not the cause of the pain. That's why "heel spur surgery" is rarely recommended anymore: treat the fascia and the pain resolves, spur or no spur.

How to tell what you have

• Plantar fasciitis: stabbing pain with first steps in the morning, pain after rest, tenderness at the inside-front of the heel.
• Symptomatic heel spur (rare): more constant, point-specific pain under the heel that persists during activity.
• Other causes worth ruling out: stress fractures, nerve entrapment, fat pad atrophy — if your pain doesn't fit the classic pattern, see a professional.

The good news: treatment is the same

Whether an X-ray shows a spur or not, the evidence-based plan is identical: reduce strain on the plantar fascia. That means daily stretching, supportive footwear, and anatomical arch support. The Muna Relief Insole supports the fascia directly and cushions the heel — taking pressure off the exact spot where spurs form.

General information, not medical advice.