That sharp stab under your heel with your first steps out of bed. The ache that builds after a long day on your feet. The dull throb that lingers after a foothills hike or a Greenbelt run. Heel pain is one of the most common reasons people visit a podiatrist — and one of the most misunderstood.
Most people assume heel pain just means "plantar fasciitis" and try to wait it out. Sometimes that works. Often it doesn't — and the longer certain types of heel pain go untreated, the harder they are to resolve. This guide covers every major cause of heel pain, how each one is diagnosed, and the full range of treatment options available to Treasure Valley patients right now.
The heel bone (calcaneus) is the largest bone in the foot. It absorbs enormous impact with every step — up to twice your body weight during walking, more during running. That load gets distributed through a network of tendons, ligaments, fat pads, and nerves. When any part of that system is overloaded or irritated, heel pain follows.
Heel pain has several distinct causes, and getting the right diagnosis matters because each one is treated differently. Here's how the most common conditions compare:
| Condition | Where it hurts | When it's worst | Key feature |
|---|---|---|---|
| Plantar Fasciitis | Bottom of heel, toward the arch | First steps in the morning; after rest | Sharp "knife" pain with first steps that eases as you walk |
| Heel Spurs | Bottom or back of heel bone | With prolonged standing or walking | Often present alongside plantar fasciitis; bony deposit visible on X-ray |
| Achilles Tendonitis | Back of heel / lower Achilles | After activity; stiffness in the morning | Tenderness directly on or just above the heel cord |
| Heel Bursitis | Back of heel | With shoe pressure; swelling visible | Inflamed bursa sac; often aggravated by stiff shoe backs |
| Stress Fracture | Diffuse heel or arch | Worsens with weight-bearing; may be constant | Gradual onset with increased activity; point tenderness on bone |
| Tarsal Tunnel Syndrome | Heel, arch, or sole | Burning, tingling, or numbness at night or with activity | Nerve compression — similar to carpal tunnel but in the foot |
Plantar fasciitis affects an estimated 10% of the general population over a lifetime and accounts for roughly 10–15% of all foot complaints requiring professional care. It's the single most common cause of heel pain we see at Treasure Valley Foot & Ankle.
The plantar fascia is a thick band of tissue that runs along the bottom of your foot, connecting the heel bone to the base of the toes. It acts like a shock-absorbing bowstring. When it's repeatedly overstressed — through high mileage, sudden activity spikes, tight calf muscles, or prolonged standing on hard surfaces — micro-tears develop near the heel attachment, causing inflammation and pain.
If your heel hurts most intensely with your very first steps out of bed — a sharp, stabbing sensation that eases after a few minutes of walking — that pattern is strongly associated with plantar fasciitis. During sleep, the fascia shortens and tightens; the first steps of the day suddenly stretch it again. You may also notice the same pain returning after sitting for a long time at your desk or after a long drive.
A heel spur is a calcium deposit that builds up on the underside of the heel bone, often at the spot where the plantar fascia attaches. Roughly half of people with plantar fasciitis have a heel spur visible on X-ray — but here's the key point most people get wrong: the spur itself is rarely the source of pain.
Many people walk around with heel spurs their whole lives and feel nothing. Conversely, people with severe plantar fasciitis pain often have no spur at all. Treatment focuses on the inflamed fascia, not on removing the spur — which is why surgery to shave off a spur alone rarely solves chronic heel pain.
Achilles tendonitis causes pain and stiffness at the back of the heel and lower leg, where the Achilles tendon attaches to the heel bone. It's common in runners who ramp up mileage too quickly and in recreational athletes returning to sport after time off. The pain tends to ease with warm-up and worsen again after activity. Left unaddressed, it can progress to a partial or complete Achilles tear.
A bursa is a small fluid-filled sac that cushions tendons as they glide over bone. The back of the heel has two bursae that can become inflamed — often from stiff shoe backs or from a bony prominence called Haglund's deformity (sometimes called "pump bump"). This causes pain, redness, and swelling at the very back of the heel.
A calcaneal stress fracture can develop from repetitive impact without adequate recovery — think training for the Boise Marathon without building in rest days. Unlike the sharp morning pain of plantar fasciitis, stress fracture pain tends to be more constant, worsening with any weight-bearing activity. An MRI is often needed to confirm the diagnosis since early stress fractures may not appear on X-ray.
When the tibial nerve is compressed as it passes through the tarsal tunnel on the inside of the ankle, it can produce burning, tingling, or numbness in the heel and sole. This nerve-related heel pain feels quite different from plantar fasciitis and requires a different treatment approach.
Getting the right diagnosis is step one. At Treasure Valley Foot & Ankle, a heel pain evaluation typically involves:
The good news: the vast majority of heel pain responds to non-surgical care. Research shows that approximately 75% of plantar fasciitis cases improve significantly within 12 months with consistent conservative treatment. Only about 5% of cases ever require surgery. The goal is to find what works for you — early.
When off-the-shelf insoles aren't enough, custom orthotics can be prescription-crafted to address your specific arch structure, gait mechanics, and the biomechanical factors driving your heel pain. They're particularly helpful for people with flat feet, high arches, or those who are on their feet for extended hours each day. Custom orthotics are also a strong prevention tool for preventing recurrence once the acute phase resolves.
When conservative care has been thorough and time has passed without adequate improvement, several in-office treatments may be appropriate:
Boise's long, dry summers are great for staying active — but they can also be a perfect storm for heel pain. After months of slower winter activity, many Treasure Valley residents launch straight into long foothills hikes, weekend 5Ks, or backyard landscaping projects in May and June. That sudden activity spike is one of the most common triggers we see. If your heel started hurting after a busy spring weekend outdoors, you're in good company — and you're exactly who conservative care is designed for.
When all else fails after 9–12 months of dedicated conservative and advanced care, surgical options exist — most commonly a partial plantar fascia release, performed minimally invasively. Surgery for heel pain has a solid track record when the right patient has been selected, but it carries recovery time and is truly a last resort. Dr. Johnson will exhaust every reasonable non-surgical option before recommending an operation.
Many people tolerate heel pain for months before seeking care — and that delay often makes treatment harder. Consider scheduling an evaluation when:
Seek same-day or urgent care if you experience: sudden, severe heel pain after a fall or impact (possible fracture); heel pain accompanied by significant swelling, bruising, or inability to bear weight; or heel pain with fever, redness, and warmth that could suggest infection. If you felt or heard a "pop" in the back of the heel, that could signal an Achilles tendon rupture — a serious injury requiring prompt evaluation.
Morning heel pain — the sharp stab with your first steps out of bed — is a hallmark symptom of plantar fasciitis. During sleep, the plantar fascia tightens. The first steps of the day stretch it suddenly, causing pain that often eases after a few minutes of walking. You may also notice the same pattern after sitting for a long time.
No. A heel spur is a calcium deposit on the heel bone; plantar fasciitis is inflammation of the plantar fascia tissue. About half of people with plantar fasciitis have a heel spur, but the spur itself is rarely the source of pain. Treatment targets the inflamed tissue, not the spur.
With consistent conservative treatment, about 75% of plantar fasciitis cases improve significantly within 12 months. Starting care early tends to shorten recovery. Waiting months before treating typically means a longer road back to full comfort.
Rarely — only about 5% of heel pain cases ultimately require a surgical procedure. Most people improve with conservative care, physical therapy, orthotics, and, when needed, in-office treatments like injections or shockwave therapy. A podiatrist can help you work through the non-surgical options first.
Treasure Valley Foot & Ankle is located in Meridian and sees patients from Boise, Nampa, Caldwell, Eagle, and throughout the valley. You can request an appointment online or call (208) 272-9253. Same-day appointments are often available for acute pain.
Heel pain is common, but it doesn't have to be something you just live with. Whether it's the classic morning stab of plantar fasciitis, the ache of a heel spur, or something less common, a proper diagnosis is the first step toward a real solution. The earlier you get evaluated, the more options you have — and the faster you can get back to the Greenbelt, the foothills, or just walking through your morning without wincing.
Dr. Clark Johnson is a board-certified foot and ankle surgeon at Treasure Valley Foot & Ankle in Meridian. If you're dealing with heel pain that isn't going away on its own, request an appointment or call (208) 272-9253.
This article is for general education and is not a substitute for professional medical diagnosis or treatment. If you are experiencing severe or worsening heel pain, or have diabetes or circulation concerns, please be evaluated in person.
Don't wait it out and hope for the best. Get a clear diagnosis and a plan tailored to your lifestyle.