Causes and Risk Factors
Plantar fasciitis is an overuse problem: repeated stress on the fascia outpaces its ability to recover. Contributing factors include:- Tight calf muscles and Achilles tendons: Limited ankle flexibility concentrates stress on the heel with every step.
- Foot mechanics: Flat feet, high arches, and abnormal walking patterns change how weight is distributed across the fascia.
- Excess body weight: More load on the fascia with every step increases risk and slows recovery.
- Occupations and activities: Long-distance running, dancing, and jobs that keep you standing on hard surfaces all contribute.
- Unsupportive footwear: Thin-soled, worn-out, or flat shoes offer little cushioning — worth remembering in Florida, where flip-flops and sandals get year-round use.
Symptoms
The pattern of pain is usually distinctive. Symptoms typically build gradually over weeks and most often affect one foot, though both feet can be involved:- Stabbing heel pain with the first steps of the day: Pain near the bottom of the heel is typically worst getting out of bed or after long sitting, then eases as the tissue warms up.
- Pain after — not during — exercise: Activity may feel fine, with soreness flaring afterward.
- Tenderness at the inner heel: Pressing where the fascia attaches to the heel bone usually reproduces the pain.
Diagnosis
Plantar fasciitis is diagnosed from the story and the examination; imaging is usually unnecessary. X-rays sometimes show a heel spur, but spurs are common in people without pain and are not the true cause. Your physician will also consider other causes of heel and foot pain, such as inflammatory arthritis, osteoarthritis, a stress fracture, or nerve-related pain referred from the back in lumbosacral radiculopathy. Blood tests are occasionally helpful when an inflammatory condition is suspected — for example, heel pain in a younger person who also has joint symptoms elsewhere.Treatment
Consistency matters more than any single remedy. Most people improve substantially within a few months, though stubborn cases can take six to twelve months to resolve fully:- Stretching: Daily calf stretches and rolling the arch over a frozen water bottle or ball are the core of treatment.
- Supportive footwear and inserts: Cushioned shoes with good arch support, or over-the-counter orthotic inserts, offload the fascia.
- Anti-inflammatory medication: Oral NSAIDs such as naproxen, or topical diclofenac gel, ease pain during flares.
- Night splints: Keeping the ankle gently flexed overnight reduces those painful first morning steps.
- Weight management and activity changes: Temporarily switching to cycling or swimming keeps you active while the heel recovers.
- Injections and other procedures: A corticosteroid injection may help persistent cases, and physical therapy or shock-wave treatment are options when pain lingers beyond several months.
Getting Heel Pain to Go Away for Good
Plantar fasciitis resolves in most people, but slowly, and the difference between three months and twelve is usually whether the stretching is done in the specific way that works and whether the things that keep re-injuring the fascia have been removed.
Stretch the fascia itself, before the first step
The stretch with the best evidence is done sitting, before getting out of bed: cross the affected foot over the opposite knee, pull the toes back toward the shin until the arch feels taut, and hold for ten seconds, repeated ten times, several times a day. Calf stretches against a wall with the knee straight and then bent are added, because a tight calf loads the heel with every step. Improvement takes weeks, and the most common failure is stopping when the morning pain first eases.
Footwear in a barefoot climate
Flat sandals, flip-flops, and bare feet on tile floors keep the fascia under strain all day, and in Florida that is most of the year. A supportive shoe or sandal with a firm heel counter and arch, worn indoors as well as out, and running shoes replaced before the midsole packs down, remove the daily re-injury. Over-the-counter inserts perform as well as custom orthotics for most people, and a night splint helps when morning pain dominates. Our heel pain treatment article covers the options.
Medication and injections have limits
Two weeks of naproxen or ibuprofen, or diclofenac gel rubbed into the heel, takes the edge off a flare but does not treat the underlying degeneration. A corticosteroid injection gives relief for a few weeks in stubborn cases, but repeated injections thin the heel's fat pad and can rupture the fascia, so they are limited and never the first step. Shock-wave therapy is an option after six months of a proper program.
When it is not plantar fasciitis
Heel pain that is worse at night, in both heels, or in someone under 40 with back stiffness or psoriasis raises the possibility of enthesitis from psoriatic arthritis or another inflammatory arthritis. Pain at the back of the heel is Achilles tendinopathy, covered in our Achilles tendinopathy article. Burning, tingling, or numbness suggests a compressed nerve, either at the ankle or from sciatica. A sudden hot, swollen heel can be gout, and pain that started after increasing mileage may be a stress fracture.
Load, weight, and staying active
The fascia recovers when total daily load drops below what re-injures it, so a jump in walking, pickleball, or standing hours is the usual trigger; our pickleball injury prevention guide covers ramping up sensibly. Cycling, swimming, and pool walking keep fitness up meanwhile. Weight loss reduces the load on every step, and in people with obesity it is often what finally settles a stubborn heel. Our musculoskeletal team arranges physical therapy and imaging when the picture does not fit. OrthoInfo and MedlinePlus publish patient guidance on heel pain.
If heel pain has lasted more than a few months despite stretching and better shoes, schedule a visit to confirm the diagnosis and adjust the plan.