Plantar Fasciitis vs. Heel Spurs: How to Tell the Difference

Plantar fasciitis vs. heel spurs is a common point of confusion because both are associated with heel pain and both can involve the same area near the bottom of the heel. The important difference is that plantar fasciitis involves irritation of the plantar fascia, while a heel spur is a bony growth that may show up on an X-ray.

For a deeper overview of symptoms, causes, and support options, see our main guide to plantar fasciitis. This article focuses only on how plantar fasciitis and heel spurs differ, where they overlap, and what the distinction means if your heel hurts.

The blunt truth: many people blame the spur because it sounds more serious. In reality, the spur is not always the source of pain. Heel pain is often more about irritated soft tissue, poor load distribution, tightness, overuse, footwear, or a combination of factors.

Quick answer: plantar fasciitis vs. heel spurs

Plantar fasciitis is irritation of the thick band of tissue that runs along the bottom of the foot and attaches near the heel. A heel spur is a calcium-like bony projection that can form on the heel bone. They can occur together, but a heel spur does not automatically mean it is causing the pain.

Side-by-side medical illustration comparing plantar fascia irritation and a heel spur near the heel bone

Plantar fasciitis involves irritated soft tissue, while a heel spur is a bony change that may or may not be painful.

The two problems are related, but they are not identical.

Plantar fasciitis: Usually soft-tissue irritation along the bottom of the heel or arch.
Heel spur: A bony projection that may appear where the plantar fascia attaches to the heel bone.
Overlap: A person can have both at the same time.
Key point: The spur may be visible on imaging without being the main reason the heel hurts.

What is plantar fasciitis?

Plantar fasciitis involves irritation of the plantar fascia, the thick band of tissue that runs along the bottom of the foot from the heel toward the toes. It is one of the most common explanations for pain under the heel.

People often describe plantar fasciitis pain as sharper with the first steps in the morning or after sitting for a while. If that pattern sounds familiar, our article on why heel pain is worse in the morning explains the first-step pain pattern in more detail.

Common plantar fasciitis clues

Pain on the bottom of the heel
Discomfort with first steps after rest
Pain that may improve after warming up, then return later
Tenderness near the heel where the arch begins
Symptoms that can worsen after long standing, walking, or running

Flat feet, high arches, tight calf muscles, worn-out shoes, sudden activity increases, and long hours on hard floors can all increase strain through the bottom of the foot. If your arches collapse inward when you stand or walk, our guide to flat feet and fallen arches may help explain the structure side of the problem. If your shoes show inward wear or your ankles roll inward, the issue may also overlap with overpronation and foot alignment.

If standing is a major trigger, our guide to foot pain from standing all day may also be relevant.

What is a heel spur?

A heel spur is a bony projection that can form on the heel bone. It may develop near the place where the plantar fascia attaches to the heel. Heel spurs are often discovered on X-rays, sometimes when a clinician is checking for other possible causes of heel pain.

The mistake is assuming that anything visible on an X-ray must be the pain generator. Heel spurs can be present without causing symptoms. In many cases, the soft tissue strain around the heel matters more than the spur itself.

Common heel spur clues

A bony spur visible on X-ray
Heel pain that overlaps with plantar fasciitis symptoms
Possible tenderness around the bottom of the heel
Symptoms that may relate more to surrounding tissue irritation than to the spur itself

For more detail on this specific topic, see our guide to heel spurs and bottom-of-heel pain.

How plantar fasciitis and heel spurs are different

The difference is easier to understand if you separate structure from symptoms.

Plantar fasciitis is a soft-tissue problem. It involves irritation or overload of the plantar fascia.
A heel spur is a bone finding. It is a small bony projection that may show up on imaging.
Plantar fasciitis can hurt without a spur. You do not need a heel spur to have plantar fasciitis symptoms.
A heel spur can exist without pain. Seeing a spur does not automatically prove it is causing the discomfort.
The treatment focus often overlaps. Reducing strain on the plantar fascia, improving shoe support, stretching, and controlling load may help in many cases.

Why they are so often confused

They are confused because both are connected to the bottom of the heel. A heel spur can form near the plantar fascia attachment, and plantar fasciitis pain is often felt in the same general area.

There is also a psychological issue: a bony spur sounds more dramatic than irritated tissue. But dramatic does not always mean clinically important. The pain pattern, exam findings, activity history, and imaging all matter.

If your main symptom is generalized heel discomfort rather than classic first-step pain, start with our broader guide to common sources of heel pain. If discomfort extends into the mid-arch rather than staying near the heel, our guide to arch pain causes and support options may be a better fit.

How a clinician may tell the difference

A healthcare professional may look at your symptom pattern, press on specific areas of the heel, assess flexibility, check your gait, and review your footwear. Imaging such as X-ray may be used when symptoms are unclear, persistent, related to injury, or when another condition needs to be ruled out.

An X-ray can show a heel spur, but it does not automatically prove the spur is the cause of pain. That is why self-diagnosing from pain location alone is weak reasoning. Heel pain has several possible causes, including plantar fasciitis, Achilles tendon problems, stress injury, nerve irritation, arthritis, and shoe-related pressure.

What may help both plantar fasciitis and heel spur-related pain?

Because plantar fasciitis and heel spurs often involve stress around the bottom of the heel, many conservative strategies overlap. The goal is usually to reduce strain, improve support, and avoid repeated overload.

Supportive shoes: Shoes should have enough structure and should not be badly worn down.
Arch support: Proper arch support may help reduce excess strain through the plantar fascia.
Heel stability: A secure heel cup can help the foot sit more steadily inside the shoe.
Stretching: Calf and plantar fascia stretching are commonly recommended in conservative care.
Load management: Reducing sudden increases in standing, walking, or running can help calm irritated tissue.
Professional care: Persistent or worsening pain should be evaluated, especially if it changes your walking pattern.

For a focused stretching resource, see our page on plantar fasciitis exercises for heel and arch strain.

Recommended Footminders insoles

If your heel pain is related to poor support, long standing, or strain along the bottom of the foot, supportive insoles may help improve how your foot sits inside the shoe. They are not a diagnosis or a cure, but they can be a practical part of a conservative support strategy.

For a more product-focused comparison, see our guide to the best insoles for plantar fasciitis. For this article, the main point is simple: choose the insole based on the shoe, not just the condition name.

Footminders Comfort: Best for sneakers, walking shoes, work shoes, and shoes with removable factory inserts.
Footminders Casual: A lower-profile option for shoes with less internal space, including many casual and dress shoes.

Footminders Comfort full-length orthotic insoles for plantar fasciitis and heel support

Footminders Comfort Orthotic Insoles

Full-length arch support for everyday shoes with enough room, including sneakers, walking shoes, and many work shoes.

View Comfort Insoles

Footminders Casual Orthotic Insoles

A lower-profile support option for shoes where a full-length insole may feel too tight or bulky.

View Casual Insoles

When to get your heel pain evaluated

Do not keep guessing if heel pain is persistent or getting worse. You should consider professional evaluation if pain follows an injury, causes limping, is severe, includes swelling or numbness, does not improve with conservative changes, or interferes with work, walking, exercise, or daily activity.

This is especially important if your pain is not located on the bottom of the heel, if it is more toward the back of the heel, or if it feels like burning, tingling, or nerve irritation. Pain toward the back of the heel may overlap more with Achilles tendonitis symptoms than with classic plantar fasciitis.

Related guides

FAQ: plantar fasciitis vs. heel spurs

Are plantar fasciitis and heel spurs the same thing?

No. Plantar fasciitis involves irritation of the plantar fascia, while a heel spur is a bony projection on the heel bone. They can occur together, but they are not the same condition.

Can you have a heel spur without heel pain?

Yes. A heel spur can appear on imaging without being the main cause of pain. Symptoms, examination, and overall foot mechanics matter.

Can plantar fasciitis happen without a heel spur?

Yes. You can have plantar fasciitis symptoms even if no heel spur is present. Plantar fasciitis is usually related to irritation or overload of the plantar fascia.

Does a heel spur need to be removed?

Not usually. Many cases are managed conservatively by reducing strain around the heel and plantar fascia. A healthcare professional can advise if symptoms are severe or persistent.

Do insoles help plantar fasciitis or heel spurs?

Supportive insoles may help by improving arch support, heel stability, and pressure distribution inside the shoe. They should be matched to the shoe and used as part of a broader conservative approach when appropriate.

Medical references

Bottom line

Plantar fasciitis and heel spurs are related, but they are not interchangeable. Plantar fasciitis is usually a soft-tissue irritation problem, while a heel spur is a bony finding that may or may not be painful. If your heel pain keeps returning, do not focus only on the spur. Look at the full picture: symptoms, shoes, arch support, activity level, flexibility, and whether professional evaluation is needed.