To understand the causes of heel pain, start with the spot that hurts and the moment it fires. Sharp, stabbing pain under the heel on the first step out of bed points toward the plantar fascia, a thick band of tissue running from the calcaneus to the toes. Burning at the back of the heel after a run points toward the Achilles tendon. Tingling along the inside of the ankle points toward the posterior tibial nerve. The location of pain, paired with timing, narrows the list of likely causes faster than any single symptom alone.
From sharp morning stabs to post-run burning, this guide maps common heel complaints to their likely source by walking through the bottom, back, and sides of the heel in sequence.
The Shape of Heel Pain and Why Location Matters
The heel takes a pounding. Each step loads it with one to three times your body weight, and running pushes that figure past five times. Over a day of walking, hundreds of tons of force travel through a single small bone called the calcaneus.
Because the heel sits at the back of foot biomechanics, problems tend to announce themselves in patterns. Pain under the heel that screams at you on the first step out of bed points toward the plantar fascia. Pain at the back of the heel that burns during a run points toward the Achilles tendon. Pain that runs along the side and tingles like a pinched wire points toward a nerve. Location and timing are two diagnostic layers most people overlook, and together they often tell you more than a single symptom in isolation.
Risk factors cluster, too. Obesity, prolonged standing on hard surfaces, flat feet or high arches, tight calf muscles, and unsupportive footwear all increase weight-bearing stress on the heel. The American Academy of Orthopaedic Surgeons notes that these same factors appear across nearly every major cause of heel pain in adults.
Pain Under the Heel and Arch: Plantar Fasciitis and Related Conditions
Sharp tenderness at the front edge of the heel where the arch begins almost always points to inflammation of the plantar fascia. This is a thick band of tissue running from the heel bone to the toes, and it handles the brunt of arch support every time your foot rolls forward.
Plantar Fasciitis and Heel Spurs
Roughly one in ten adults will deal with plantar fasciitis at some point, making it the leading source of heel discomfort. It produces a stabbing sensation beneath the heel that is worst with the first steps after waking or after long periods of sitting. The pain typically eases after walking for a few minutes, then returns if you stay on your feet too long. Heel spurs, which are bony growths on the calcaneus, frequently show up on X-rays alongside plantar fasciitis, but the spur itself is rarely the source of pain. The inflamed fascia is.
Risk factors cluster tightly here. People with flat feet or very high arches, those who stand for hours at work, runners who ramp up mileage too fast, and anyone carrying extra body weight all place more tension on the plantar fascia.
Fat Pad Bruising and Fascia Tears
A bruised heel fat pad feels different from plantar fasciitis. The pain is deep and throbbing rather than sharp and first-step specific, and it worsens on hard surfaces like concrete rather than easing as you walk. Plantar fascia tears are rarer and usually follow a sudden forceful push-off, producing acute pain plus occasional swelling.
| Pain Pattern | Most Likely Cause | What Aggravates It |
|---|---|---|
| Sharp pain with first morning steps | Plantar fasciitis | Rest, then weight-bearing |
| Deep, bruised ache under the heel | Fat pad contusion | Hard floors, prolonged standing |
| Sudden acute pain after push-off | Plantar fascia tear | Running, jumping, stairs |
| Pain plus a visible bony bump | Heel spur (often with fasciitis) | Tight shoes, barefoot walking |
Pain at the Back of the Heel: Achilles and Bursa Involvement
Move your fingers to the back of the heel and the list of suspects changes. Tendon strain and bursitis dominate this region, and both flare up during activity rather than after rest.
Achilles Tendinitis
A burning or aching sensation just above the back of the heel bone often signals inflammation where the Achilles tendon attaches. Runners and active adults hit this most often, especially after sudden increases in mileage, hill repeats, or a return to sport following time off. The tendon feels stiff in the morning and tender to the squeeze, and it often creaks or grinds when you flex the foot. Ignoring it can lead to tendinosis, a chronic degeneration of the tendon that takes months longer to settle.
Retrocalcaneal Bursitis and Haglund’s Deformity
Retrocalcaneal bursitis mimics Achilles pain but sits slightly higher and produces visible swelling with redness, especially where a rigid shoe counter presses against the back of the heel. Haglund’s deformity adds a bony prominence at the back of the heel that rubs inside footwear and inflames the surrounding tissue. Both conditions overlap with Achilles tendinitis, which is why a clear clinical exam matters.
Sever’s Disease in Adolescents
Children and teenagers who run, jump, or play repetitive sports often develop calcaneal apophysitis, commonly called Sever’s disease. The growth plate at the back of the heel becomes inflamed during growth spurts and athletic seasons, producing heel pain that sidelines them from soccer, basketball, and gymnastics. Rest, ice, and heel lifts usually resolve it within a few weeks.
Heel pain in a 10-to-14-year-old active athlete is almost never plantar fasciitis. Suspect Sever’s until proven otherwise.
Side, Deep, and Nerve-Related Heel Pain
When pain drifts to the inside or outside of the heel, or feels like a deep ache inside the bone, the suspects shift again. Nerve compression, tendon irritation on the lateral side, and stress fractures of the calcaneus all land here.
Nerve Entrapment and Tendon Irritation
Tarsal tunnel syndrome compresses the posterior tibial nerve on the inside of the ankle. The result is burning, tingling, or numbness that radiates into the heel and arch, often worse at night or after long periods of standing. Peroneal tendinitis, on the other hand, causes lateral heel pain along the outer foot, aggravated by pushing off during walking or running. Both conditions can mimic plantar fasciitis at first, which is why the exact location of pain matters so much.
Calcaneal Stress Fractures
A deep, persistent ache inside the heel bone that worsens during weight-bearing activity frequently indicates a calcaneal stress fracture. The pain intensifies with impact and does not ease with the usual stretching routines that help plantar fasciitis. Repetitive impact activities such as long marches, sudden mileage jumps, or high-volume jumping often trigger them. Imaging (X-ray first, MRI if X-ray is unclear) is the only way to confirm the diagnosis.
Inflammatory Arthritis Variants
Conditions such as reactive arthritis and Reiter’s syndrome can settle in the heel, producing morning stiffness and swelling that feels distinctly different from mechanical strain. Pain that worsens with rest and improves with movement is a clue, especially when paired with other joint symptoms elsewhere in the body.
| Location | Possible Cause | Key Clue |
|---|---|---|
| Inside of heel/ankle | Tarsal tunnel syndrome | Burning, tingling, worse at night |
| Outside of heel | Peroneal tendinitis | Pain on push-off during walking |
| Deep inside the bone | Calcaneal stress fracture | Persistent ache, no relief from rest |
| Heel plus other joints | Reactive arthritis | Stiffness, swelling in multiple sites |
Self-Care Protocols That Match the Cause
Generic rest rarely fixes heel pain because each cause needs a slightly different intervention. Matching your self-care to the cause shortens recovery and prevents chronic problems.
Bottom-of-Heel Pain Routine
Stretching the calves and plantar fascia first thing in the day, icing after activity, and wearing shoes with supportive arches form the standard routine for pain sharpest on first steps. Most people see meaningful improvement in four to six weeks of consistent effort. Rolling the arch on a frozen water bottle for ten minutes after activity adds a targeted icing effect without the inconvenience of a full ice pack.
Back-of-Heel Pain Routine
Eccentric heel-drop exercises that load the Achilles, cushioned heel lifts inside shoes, and avoiding hill running together manage back-of-heel pain without aggressive immobilization. Eccentric loading has solid evidence for rebuilding tendon strength and reducing pain over a 12-week timeline.
Return-to-Running Adjustments
Runners should reduce mileage by roughly fifty percent, swap hard surfaces for softer terrain, and replace shoes beyond five hundred miles before expecting meaningful relief. Pain when walking is one thing. Pain that returns at mile three of an easy run tells you the tissue is not ready for full training load yet.
Once a routine matches the cause, knowing when to keep going versus seek help becomes the next practical question.
- Reduce mileage by half. Drop weekly volume by about 50 percent for two to four weeks before rebuilding gradually.
- Switch surfaces. Trade concrete and asphalt for grass, trail, or a treadmill for the first month of recovery.
- Replace worn shoes. Most running shoes lose their protective cushioning between 300 and 500 miles.
- Add heel lifts or arch support. A simple over-the-counter insert can offload the plantar fascia enough to allow healing.
- Stretch the calves daily. Tight calves pull on both the plantar fascia and the Achilles tendon.
- Ice after activity. Ten to fifteen minutes of icing after exercise reduces inflammation without medication.
Red Flags and the Self-Treat Versus Doctor Decision Line
Most heel pain responds to conservative care. A clear minority does not, and recognizing those cases early prevents months of frustration.
Warning Signs That Need Prompt Evaluation
Sudden sharp pain after a fall or twist, visible swelling, numbness, or pain at rest warrants prompt imaging to rule out fracture or infection. People with diabetes, poor circulation, or compromised immunity should seek evaluation early, because heel pain in those populations can mask ulcers or atypical infections that progress quickly. A foot that feels hot, looks red, or has an open sore alongside the pain is a same-day concern.
When Self-Care Isn’t Working
Expect meaningful improvement in two to four weeks. No change after six weeks of consistent self-care signals the need for professional evaluation. A primary care or sports medicine visit typically costs in the low hundreds, while X-rays and ultrasound add modest additional costs that confirm the diagnosis quickly. Referral to a podiatrist or orthopedic specialist becomes appropriate when conservative care stalls, pain disrupts sleep, or gait changes start producing knee, hip, or back symptoms. Untreated heel pain alters your gait and creates secondary problems up the kinetic chain.
Return-to-Activity Timeline
Returning to running follows a graded protocol of walk-run intervals over three to six weeks, not a sudden full-mileage restart. A typical progression moves from five minutes of running followed by two minutes of walking (repeated five to six times) toward continuous easy running, with mileage increases capped at ten percent per week. Pain that spikes during or after these sessions is feedback to slow down, not push through.
Skip the “no pain, no gain” instinct with heel pain. The tissue needs gradual loading to remodel, not sudden high-mileage punishment.
Bottom Line
The location of your heel pain tells you most of what you need to know. Sharp first-step pain under the heel points toward plantar fasciitis. Burning at the back of the heel after running points toward Achilles tendinitis. Tingling along the inside of the ankle points toward tarsal tunnel syndrome. Matching your self-care to the specific cause, giving it four to six weeks of consistent effort, and recognizing red flags early is the fastest path back to walking, working, and running without pain.
FAQ
What is the most common cause of heel pain?
A sharp, stabbing sensation under the heel that hits hardest with the first steps after waking or sitting typically marks plantar fasciitis, the leading cause of heel pain in adults. It accounts for the majority of heel pain complaints seen in primary care and podiatry offices.
How do I know if my heel pain is serious?
Heel pain is considered serious when it follows a fall or twist, comes with visible swelling or redness, includes numbness or tingling, or persists at rest. Pain that does not improve after six weeks of consistent self-care also warrants professional evaluation, since imaging may be needed to rule out a stress fracture or other structural problem.
When should I see a doctor for heel pain?
See a doctor promptly if pain is severe, sudden, or accompanied by swelling, fever, or an open sore. Schedule a non-urgent visit if heel pain lasts longer than six weeks despite rest, stretching, and supportive footwear, or if it begins affecting your gait, sleep, or other joints.
Can heel pain go away on its own?
Mild heel pain often improves within a few weeks of reduced activity, supportive footwear, and stretching. However, the underlying causes rarely resolve completely on their own without targeted self-care, and recurring flare-ups are common when the root problem (tight calves, weak foot muscles, poor shoes, high body weight) is not addressed.
What does heel pain from plantar fasciitis feel like?
A sharp, stabbing pain under the heel or along the arch that peaks during the first few steps after waking or sitting is the classic sensation of plantar fasciitis. The pain usually eases after a few minutes of walking, then returns after long periods of standing or at the end of the day.
How is the cause of heel pain diagnosed?
Diagnosis starts with a clinical exam that includes pressing on specific spots around the heel, testing range of motion, and asking about pain timing. X-rays can rule out fractures and identify heel spurs, while ultrasound or MRI helps confirm soft tissue problems like plantar fascia tears, Achilles tendinosis, or stress fractures when the picture is unclear.
