Is this actually plantar fasciitis?
Heel pain has at least five distinct causes. The stretches that fix one can flare another. Three questions and one self-test to figure out what you are actually dealing with.
Stop and see a doctor if any of these apply
- · Sudden pop or tearing sensation followed by inability to bear weight (possible plantar fascia rupture)
- · Numbness, burning, or pins-and-needles on the sole of the foot (possible tarsal tunnel syndrome, different problem, different treatment)
- · Pain at night that wakes you up (possible bone pathology, uncommon but needs imaging)
- · Visible swelling, heat, or redness over the heel (possible infection or stress fracture)
- · Diabetes plus new foot pain (different referral pathway, see a podiatrist promptly)
- · Pain after a fall or significant trauma (rule out calcaneal stress fracture)
- · Pain that is worsening week-over-week despite consistent rest and stretching past 6 weeks
For the typical plantar fasciopathy picture, none of the above apply. The stretches on this site are safe. If anything above applies, see a podiatrist or GP before starting.
Where exactly is the pain?
Bottom of the heel, slightly inside
Right at the medial calcaneal tuberosity. Worst with first steps in the morning, eases with movement, returns at end of day. Classic plantar fasciitis / fasciopathy. Go to Question 2 to confirm.
Behind the heel
At the back of the heel where the Achilles attaches: likely Achilles tendinopathy instead. Calf stretches still help, but big-toe extension does not. See a podiatrist for an Achilles-specific protocol.
Across the entire underside, burning
Burning or pins-and-needles across the sole: possible tarsal tunnel syndrome (a nerve compression problem). Plantar fasciitis stretches will not help. See a podiatrist.
Forefoot or ball of foot
Pain in the ball of the foot or between the toes: more likely metatarsalgia or Morton's neuroma. Not plantar fasciitis. Different stretches and possibly different shoes are needed.
Sit down, take hold of your big toe, pull it back toward your shin
Take your shoes off. Sit comfortably and cross the affected ankle over your other knee. Take hold of the big toe of the painful foot. Pull it gently back into extension (toward your shin).
Pain in the heel sharpens or reproduces
Positive windlass test. Strong evidence that the plantar fascia is the pain source. The stretches and routines on this site are the right intervention. The big-toe extension stretch becomes a daily exercise rather than a test.
No change in pain
Negative windlass test. The fascia may not be the source. Calf stretches and self-massage are still safe to try. If you have no improvement after 4 to 6 weeks, see a podiatrist for a differential.
The windlass test is one of the most-used clinical screening tests for plantar fasciitis. Pulling the toe up tensions the fascia via the windlass mechanism: if the tissue is the source, the test reproduces the pain. De Garceau and colleagues (2003) reported good specificity for this test in the diagnostic workup.
How long has it been hurting?
Under 4 weeks
Acute / reactive phase. Stretch gently. Use the morning routine and end-of-day routine. Hold off on the eccentric heel drops for the first 2 to 3 weeks: irritated tissue does not load well.
4 weeks to 6 months
Subacute. The single most likely thing to move the needle: add the eccentric heel-drop protocol from the runner routine. This is the Rathleff protocol.
Over 6 months (chronic)
Chronic plantar fasciopathy. If you have not seen a podiatrist, do so. Eccentric loading remains the strongest intervention. Adjuncts like shock wave therapy or steroid injection become reasonable to consider at this stage.
Plantar fasciitis vs the imitators
| Condition | Where the pain lives | Distinguishing feature | What helps |
|---|---|---|---|
| Plantar fasciitis | Bottom of heel, slightly inside | Worst first thing in the morning, eases with movement, positive windlass test | Stretching, eccentric heel drops, insoles |
| Heel spur | Bottom of heel | Often visible on X-ray but usually NOT the actual pain source. Coexists with fasciitis but is incidental. | Same as plantar fasciitis. Surgery for the spur itself is almost never needed. |
| Achilles tendinopathy | Back of heel, where the tendon inserts | Pain is BEHIND the heel, not under it. Often worse going up stairs. | Eccentric heel drops still help. Big-toe extension does not. See a podiatrist. |
| Tarsal tunnel | Across the sole, often medial | Burning, electric, or pins-and-needles. Worse with prolonged standing. | Nerve gliding, not stretching. Refer to a podiatrist. |
| Calcaneal stress fracture | Heel, deep ache | Worsens through the day, not better. Often follows a sudden activity increase. Imaging needed. | Rest, refer. Do not stretch through this. |